Showing posts with label Keynes. Show all posts
Showing posts with label Keynes. Show all posts

Monday, December 29, 2014

HISTÓRIA BREVE DE UMA CURVA CONTROVERSA

A curva é esta,


e foi desenhada há 40 anos num guardanapo de papel por Arthur Laffer, que tinha 34 anos na altura, durante um almoço em Washington com Dick Cheney e Don Rumsfeld, conselheiros do Presidente Gerald Ford. A história vem contada no "Outlook" do Washington Post de ontem - The Laffer Curve is 40, and looking pretty good - e resume-se em poucas linhas. 

Laffer desenhou o boneco para os outros entenderem uma ideia, de que ele nunca reclamou a paternidade, e que, segundo ele, remonta ao século XIV: o aumento das taxas de impostos tem, a partir de determinável limite, um efeito contrário ao pretendido, reduzindo-se a arrecadação da receita fiscal por efeito da ultrapassagem daquele limite. Consequentemente, em tempos de recessão, não é com o aumento da procura por injecção de despesa pública que se reanima a economia - contrariando a ideia primordial de Keynes - mas com a dinamização da actividade económica a partir da redução da carga tributária.

Onde mora a verdade?
Talvez a meio caminho. 


Wednesday, February 15, 2012

KRUG TRIPLE HONORIS CAUSA MAN

Dia 27 de Fevereiro é dia de Hat-trick em Portugal para Paul Krugman, segundo notícia publicada aqui.

O doutoramento será concedido pelas universidades de Lisboa, Técnica e Nova . O Nobel da Economia de 2008, que conhece Portugal desde que foi estudante no MIT, visita Lisboa na sequência da sua entrada para a Academia de Ciências de Lisboa como correspondente estrangeiro.

A mim parece-me bem: Como as coisas estão, dividir os encargos das cerimónias sairá mais barato para as universidades e menos fatigante para o triplo-doutorado, o que não deixará de pesar nas suas análises acerca do esforço deste povo que ele estima para se tornar mais parcimonioso e eficiente em época de crise galopante.

As políticas de austeridade adoptadas pela União Europeia (leia-se Alemanha), FMI e BCE para a solução da crise têm merecido repetidas críticas do Prof. Krugman, também neste caso muito sintonizado com as opiniões do Prof. Stiglitz. O tempo tem vindo, aparentemente, a dar-lhes razão. E digo aparentemente, porque nunca poderemos saber se a opção expansionista (se a Alemanha a consentisse) poderia resgatar as finanças e recuperar as economias mais fragilizadas e tonificar-lhe as suas fraquezas estruturais.

Realmente não sabemos nem uma coisa nem outra.
O Prof. Krugman e o Prof. Stiglitz têm sido incansáveis a repetir o erro europeu. Mas as suas abordagens macroeconómicas não consideram, geralmente, os micro-meandros de uma realidade atrofiada que não se resolve simplesmente com mais dinheiro.

Mas, a este respeito, também não tem sido relevante o contributo dos académicos que no dia 27 o vão aplaudir. 

Thursday, August 25, 2011

KEYNESIANS ECONOMICS VS. REGULAR ECONOMICS

By ROBERT J. BARRO

Keynesian economics—the go-to theory for those who like government at the controls of the economy—is in the forefront of the ongoing debate on fiscal-stimulus packages. For example, in true Keynesian spirit, Agriculture Secretary Tom Vilsack said recently that food stamps were an "economic stimulus" and that "every dollar of benefits generates $1.84 in the economy in terms of economic activity." Many observers may see how this idea—that one can magically get back more than one puts in—conflicts with what I will call "regular economics." What few know is that there is no meaningful theoretical or empirical support for the Keynesian position.

The overall prediction from regular economics is that an expansion of transfers, such as food stamps, decreases employment and, hence, gross domestic product (GDP). In regular economics, the central ideas involve incentives as the drivers of economic activity. Additional transfers to people with earnings below designated levels motivate less work effort by reducing the reward from working.

In addition, the financing of a transfer program requires more taxes—today or in the future in the case of deficit financing. These added levies likely further reduce work effort—in this instance by taxpayers expected to finance the transfer—and also lower investment because the return after taxes is diminished.

This result does not mean that food stamps and other transfers are necessarily bad ideas in the world of regular economics. But there is an acknowledged trade-off: Greater provision of social insurance and redistribution of income reduces the overall GDP pie.

Yet Keynesian economics argues that incentives and other forces in regular economics are overwhelmed, at least in recessions, by effects involving "aggregate demand." Recipients of food stamps use their transfers to consume more. Compared to this urge, the negative effects on consumption and investment by taxpayers are viewed as weaker in magnitude, particularly when the transfers are deficit-financed.

Thus, the aggregate demand for goods rises, and businesses respond by selling more goods and then by raising production and employment. The additional wage and profit income leads to further expansions of demand and, hence, to more production and employment. As per Mr. Vilsack, the administration believes that the cumulative effect is a multiplier around two.

If valid, this result would be truly miraculous. The recipients of food stamps get, say, $1 billion but they are not the only ones who benefit. Another $1 billion appears that can make the rest of society better off. Unlike the trade-off in regular economics, that extra $1 billion is the ultimate free lunch.

How can it be right? Where was the market failure that allowed the government to improve things just by borrowing money and giving it to people? Keynes, in his "General Theory" (1936), was not so good at explaining why this worked, and subsequent generations of Keynesian economists (including my own youthful efforts) have not been more successful.

Theorizing aside, Keynesian policy conclusions, such as the wisdom of additional stimulus geared to money transfers, should come down to empirical evidence. And there is zero evidence that deficit-financed transfers raise GDP and employment—not to mention evidence for a multiplier of two.

Gathering evidence is challenging. In the data, transfers are higher than normal during recessions but mainly because of the automatic increases in welfare programs, such as food stamps and unemployment benefits. To figure out the economic effects of transfers one needs "experiments" in which the government changes transfers in an unusual way—while other factors stay the same—but these events are rare.

Ironically, the administration created one informative data point by dramatically raising unemployment insurance eligibility to 99 weeks in 2009—a much bigger expansion than in previous recessions. Interestingly, the fraction of the unemployed who are long term (more than 26 weeks) has jumped since 2009—to over 44% today, whereas the previous peak had been only 26% during the 1982-83 recession. This pattern suggests that the dramatically longer unemployment-insurance eligibility period adversely affected the labor market. All we need now to get reliable estimates are a hundred more of these experiments.

The administration found the evidence it wanted—multipliers around two—by consulting some large-scale macro-econometric models, which substitute assumptions for identification. These models were undoubtedly the source of Mr. Vilsack's claim that a dollar more of food stamps led to an extra $1.84 of GDP. This multiplier is nonsense, but one has to admire the precision in the number.

There are two ways to view Keynesian stimulus through transfer programs. It's either a divine miracle—where one gets back more than one puts in—or else it's the macroeconomic equivalent of bloodletting. Obviously, I lean toward the latter position, but I am still hoping for more empirical evidence.

Mr. Barro is an economics professor at Harvard and a senior fellow at Stanford's Hoover Institution.

Sunday, August 21, 2011

THE NEW WOODOO ECONOMICS?

When John McCain was running for the Republican presidential nomination nearly 12 years ago, he declared that Alan Greenspan was so critical to the economy that, if the then-Federal Reserve chairman died, he’d put sunglasses on the body, prop him up and hope no one noticed.

It’s safe to say that GOP opinions of the Fed have slipped a bit since. Texas Gov. Rick Perry, a newly declared candidate for president, said it would be “treasonous” for Greenspan’s successor, Ben Bernanke, to “print more money between now and the election” in an effort to boost the economy. Other candidates have been equally damning if slightly less extreme in their statements. Rep. Michele Bachmann of Minnesota has accused the Fed of “debasing the currency,” while Rep. Ron Paul of Texas has written a bestseller called “End the Fed.” The party’s economic standard-bearer in the House, Paul Ryan of Wisconsin, repeatedly charges the Fed with “bailing out” what he considers President Obama’s reckless fiscal policy and wants the institution stripped of its mandate to promote employment.

If Republicans dislike monetary stimulus, they loathe its fiscal cousin even more, routinely labeling Obama’s stimulus as ineffective, or worse, counterproductive. They want balanced budgets, the sooner the better. Bachmann, for instance, has advocated an immediate 40 percent cut to federal spending by barring any increase in the debt ceiling. This, too, is at odds with the party’s earlier views. The administration of George W. Bush sold its 2001 and 2003 tax cuts as Keynesian-style economic stimulus. Lawrence Lindsey, a top Bush adviser, even likened opponents of the tax cuts to President Herbert Hoover, whose obsession with balancing the budget in 1932 worsened the Great Depression.

Certainly, some of this rhetoric is just political opportunism. The Fed and the stimulus package are handy proxies for Republicans’ real target, which is Obama in the 2012 election. But something more fundamental is going on: The economic ideology of the Republican Party has changed in recent years in an important and little-appreciated direction. Liberals and conservatives in the United States have long differed on how much the government should meddle in individual markets, whether for energy or health care. But they have largely agreed that the government should have at least some role in smoothing out the ups and downs of the business cycle — what economists call “macroeconomic stabilization,” that is, containing inflation in good times and boosting employment in bad.

But this is the consensus that many Republicans in effect now reject. In their view, the government has no more role meddling in the business cycle than in any other market. “Many of our problems can be traced to a misguided belief by politicians that the American economy is something that can be controlled or micromanaged or influenced positively by government intervention and borrowing,” House Speaker John Boehner (R-Ohio) said in a speech in May. He went on to explain that “for job creators, the ‘promise’ of a large new initiative coming out of Washington is more like a threat. It freezes them. … The rash of ‘stimulus’ legislation passed by Congress in recent years has been one of those obstacles.”

more

Wednesday, February 17, 2010

O SEXO DA ECONOMIA

Ainda a propósito do que escrevi nos dois últimos apontamentos, (aqui e aqui) quanto mais penso na posicionamento de muitos economistas relativamente às responsabilidades que assacam às Universidades onde ensinam na gestação da crise financeira global, mais se me arreiga a ideia de que essa auto incriminação (de que eles, ainda que críticos não podem, honestamente, desvincular-se) é, sobretudo, uma atitude partidária. Não é por acaso, julgo eu, que Castro Caldas refere no comentário que transcrevi aqui a falta de pluralismo no ensino da economia.

O ensino universitário, a investigação científica, ou são plurais no espectro possível de análise, ou não são nem uma coisa nem outra. Presumo, contudo, que aqueles que hoje tão acirradamente contestam as instituições onde são profissionais, e alegam falta de pluralismo, pretendem que a Universidade seja palco de discussão ideológica sem qualquer constrangimento que o método científico requer para que o seja.

Pego na citação feita por CCaldas de uma afirmação de Samuelson em 1955:

“In recent years, 90 per cent of American economists have stopped being Keynesian economists" or Anti-Keynesian economists." Instead, they have worked toward a synthesis of whatever is valuable in older economics and in modern theories of income determination. The result might be called neo-classical economics and is accepted, in its broad outlines, by all but about 5 per cent of extreme left-wing and right-wing writers.”

e pergunto-me: Poderia ser diferente?
Não é a economia, como qualquer outra área do conhecimento, um edifício em construção, resultante dos contributos que vão sendo carreados ao longo dos tempos? Em 55 anos alguma coisa consistente foi acrescentada ao edifício, espera-se.

Se as ideologias neo-liberais prevaleceram nas últimas décadas, e sobretudo depois do desmoronamento da experiência do socialismo real, se essas ideologias promoveram a desregulação e a desregulação permitiu o saque, o que é que fomentou o descalabro: a ideologia ou a ciência?
Ninguém, se não for comandado por convicções ideológicas inabaláveis, pode continuar a acreditar no princípio do equilíbrio natural dos mercados. Em 1 de Agosto de 2007 transcrevi aqui uma pergunta de Nouriel Roubini, que citava Minsky, o economista que melhor e de forma mais isenta estudou a obra de Keynes. Nouriel Roubini, nessa altura, e tanto quanto julgo saber, ainda era praticamente ignorado em Portugal:
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Specifically, the crucial macro question that we should ask ourselves today is whether we are at the peak of a Minsky Credit Cycle. Or as the UBS economist George Magnus – an expert of financial instability - put it: “Have we reached a Minsky moment?”
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Há muito tempo que Minsky demonstrou a natural tendência para o desequilíbrio dos mercados financeiros. Quem é que ignorava isso? A Universidade não podia ignorar. Ignoraram aqueles a quem convinha fazer crer que também esses mercados (quais os outros?) tendem para o equilíbrio.
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Evidentemente que os mercados necessitam de regulação. E, sobretudo, precisam de regulação os mercados financeiros onde a lógica de intervenção dos apostadores é, geralmente, a dos jogadores de casino. A começar pela clarificação obrigatória bastante do conteúdo dos produtos transaccionados. E pela não admissão às mesas de jogo daqueles que não têm capacidade nem financeira nem conhecimento suficiente daquilo que se propõem comprar.
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Etc.

IMPUREZAS ECONÓMICAS - 2

Ontem, a propósito do comentário que coloquei aqui e transcrevi aqui, José M. Castro Caldas, Professor Auxiliar do Departamento de Economia do ISCTE teve a amabilidade de apontar-me o seguinte: "
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Não sei se o que segue é ou não evidência factual bastante...
Paul Samuelson escreveu em 1955:“In recent years, 90 per cent of American economists have stopped being Keynesian economists" or Anti-Keynesian economists." Instead, they have worked toward a synthesis of whatever is valuable in older economics and in modern theories of income determination. The result might be called neo-classical economics and is accepted, in its broad outlines, by all but about 5 per cent of extreme left-wing and right-wing writers.”
95% parece a maioria do Sadam, não é? E que tal a etiqueta dos restantes 5%? Convenhamos que “extrema-esquerda” ou “extrema-direita” não é qualificativo que facilite o acesso à academia, sobretudo nos tempos do MacCarthismo. Acha que em Portugal o Samuelson não fez escola? Acha mesmo que há pluralismo no ensino da Economia?
É que conhecendo eu os cantos à casa fico na dúvida se está a brincar ou a falar a sério?
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As perguntas do professor Castro Caldas suscitaram-se um sem número de comentários. A começar pela estranheza de ele recorrer a uma citação para me apresentar como evidendência factual bastante uma afirmação de Samuelson feita há 55 anos. Respondi-lhe, circunscrevendo-me ao essencial das suas perguntas.
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"Estou a falar a sério e fico espantadíssimo, caro Castro Caldas, com o que me diz.
Porque se conhece os cantos à casa, presumo que os conhece como professor. Assim sendo, o que é tem vindo a ensinar aos seus alunos? A boa ou a má teoria? Frequentei a Universidade ainda no tempo da ditadura, e ninguém que estivesse minimamente acordado nessa altura ignorava as principais correntes do pensamento económico. Passou a haver lei da rolha com a democracia?Alguém comanda o seu pensamento enquanto professor universitário?
Há livro único?
Estamos a falar de ensino universitário ou de ensino primário?"
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Até agora não tive resposta.

Friday, February 12, 2010

O QUE DIZ STIGLITZ

We (they) had been channeling too much money into real estate - too much money, to people beyond their ability to repay. The financial sector was supposed to ensure that funds went to where the returns to society were highest. It had clearly failed.

California mortgage lender Paris Welsh wrote to U.S. regulators in January 2006: "Expect faillout, expect foreclosures, expect horror stories." One year later, the housing implosion cost her her job.

Moody´s Economy.com projected that a total of 3.4 million homeowners woul default their mortgages in 2009, and 2.1 million woul lose their homes. Millions are expected to go into foreclosure in 2012. Banks jeopardized the life savings of millions of people when they persuaded them to live beyond their means.

Federal Reserve Chairman Alan Greenspan, the man who was supposed to be protecting the country from excessive risk-taking, actually encouraged it.

Globalization had opened up a whole word of fools; many investors abroad did not understand America´s peculiar mortgage market, especially the idea of nonrecourse mortgages.

(Obama) shoul have known that he couldn´t please everyone in the midst of a major economic war tetween Main Street and Wall Street. The president was caught in the middle.

Obama had learned that he couldn´t please everyone. But had he pleased the right people?

The banks had grown not only too big to fail but also too politically powerful to be constrained. If some banks were so big that they could not be allowed to fail, why shoul we allow them to be so big?

"If some banks are thought too big to fail ...then they are too big", (said) Mervyn King, the governor of Bank of England.

Their (banks) competitive advantage arises from their monopoly power and their implicit goverment subsidies.

Even if the too big to fail banks had no power to raise prices (the critical condiction in modern antitrust analysis), they should be broken.

Firms involved in the financial markets had made hundreds of millions of dollars in campign contributions to both political parties over a decade.

"As the United States entered the first Gulf War in 1990, General Colin Powel articulated what came to be called the Powel doctrine, one element of which including attacking with decisive force. There shoud be something analogous in economics, perhaps the Krugman-Stiglitz doctrine. When an economy is weak, very weak as the world apeared in early 2009, atack with overwhelming force. A government can always back the extra ammunition if it has it ready to spend, but not having the ammunition ready can have long lasting effcts. Attacking the problem with insufficient ammunition was a dangerous strategy, especially as it became clear that the Obama admistration had underestimated the strength of the downturn, including the increase in unamployment. Worse, as the administration continued is seemingly limitless support to the banks, there didn´t seem to be a vision for the future of the American economy and its ailing financial sector."


The Fed said it will deftly manage the economy, taking out liquidity as needed to prevent inflation. Anyone looking at tha actions of the Fed in recent decades won´t feel so confident.

Systemic risk can exist without there being a single systemetically important bank if all the banks behave similarly - as they did, given their herd mentalaty.

What has to be done? (...) a simple reform - basing pay on long term perormance, and making sure that bankers share in the losses and not just in the gains - might make a big difference. If firms use "incentive pay" it has to be really incentive pay - the firm should have to demonstrate that there is relationship between pay and long-term performance.

The financial markets had created products so complex that even all details of them were known, no one could fully understand the risk implications. The banks had at their disposal all the relevant information and data, yet they couldn´t figure out their own financial position.

The Obama administration articulated a clear double standard: contracts for AIG executives were sacrossant, but wage contracts for workers in the firms (GM and Chrysler, forced by Obama administration into bankruptcy) receiving help had to be renegotiated. Low-income workers who had worked hard all their life and had done nothing wrong would have to take a wage cut, but not the million-dollar-plus financiers who had brought the world to the brink of financial ruin. They were so valuable that they had o be paid retention bonuses, even if there were no profit from which to pay them a bonus. The bank executives could continue with their high incomes; the car company executives had to show a little lesse hubris. However, sacaling down their hubris wasn´t enough; the Obama adminstration forced the two companies into bankruptcy.

... there were alternatives that would preserved and strengthened the financial system and done more to restart lending, alternatives that in the long run would have left the country with a national debt that was hundreds and hundreds of billions of dollars smaller and a larger sense of fair play. But these alternatives would have left the banks shareholders and bondholders poorer. To the critics of Obama´s rescue package, it was no surprise that Obam´s team , so tightly linked to Wall Street, had not pushed for these alternatives.

Obama could have taken alternative actions, and there are still many options available, though the dicisions already made have substantially circumscribed them.

Regrettably, The Obama administration didn´t present a clear view of what was needed. Instead it largely left it to Congress to craft the size and shape of the stimulus. What emerged was not fully what the economy needed.

If a country stimulates its economy through debt-financed consumption, standards of living in the future will be lower when times comes to pay back the debt or even just to pay interest on it.

Between the start of the recession, in December 2007 and Octobar 2009, the economy lost 8 million jobs (in USA).

Conservatives invoke Ricardian equivalence more often as an argument against expenditure increases than as an argument against decreases. Indeed the theory suggests that nothing matters much. If the government increases taxes, people adjust; they spend exactly as much money today as they do otherwise, knowing that they will have to pay less taxes in the future. Those of the two assumptions are commonplace but obviously wrong: markets and information are perfect. In this scenario, everyone can borrow as much as they want.

The banks had gotten into truble by putting so much of what they were doing "off balance sheet" - in an attempt to deceive their investors and regulators - and now these financial wizards were helping the administration to do the same, perhaps in an attempt to deceive taxpayers and voters.

The U.S. government should have played by the rules and "reestructured" the banks (shareholders lose everything, bondholders become the new shareholders) that needed rescuing, rather than providing them unwarranted handouts.

With so many countries facing problems of their own, the United States can´t count on an export boom. Certainly, as I have noted, the entire world cannot export its way to growth. In the Great Depression, countries tried to protect themselves at the expense of their neighbors. These were called beggar-thy-neighbor policies, and included proteccionism (imposin tariffs and other trade barriers) and competitive devaluations (...). These are no more likely to work today than they did then; they are likely to backfire.

If global consumption is to be strenghtened, there will have to be a new global reserve system so that developing countries can spend more and save less.

In psychology, there is phenomenon called escalating commitment. Once one takes a position, one feels compeled to defend it.

A propósito desta última afirmaçao de Stiglitz, pode perguntar-se: será este um caso exemplo da calcificação ideológica que obstrui o fluir da razão?

Aqui afirma-se que sim. Mas essa afirmação está, indisfarçavelmente, carregada de uma ideologia que não admite evidências que a contrariem por mais que elas se agigantem. E o livro de Stiglitz está bem recheado delas.

Há muito mais em Freefall. De tudo o que li, penso que Stiglitz exagera na apreciação que faz da intervenção da administração de Obama, responsabilizando-a, insistentemente em conjunto com a administração Bush. Por outro lado, a sua crítica à forma precipitada como os estímulos foram lançados sobre a fogueira e a entrega ao Congresso da definição do volume desses estímulos parece ignorar que a situação impunha medidas de emergência que não podiam aguardar pelo estabelecimento de um plano de intervenção melhor orientada e que o presidente dos EUA não tem o grau de liberdade de intervenção pessoal que as propostas de Stiglitz pressupõem.

Wednesday, July 22, 2009

MUDAR DE CIÊNCIA

What went wrong with economics
And how the discipline should change to avoid the mistakes of the past

... In a recent lecture, Paul Krugman, winner of the Nobel prize in economics in 2008, argued that much of the past 30 years of macroeconomics was “spectacularly useless at best, and positively harmful at worst" (... )

... Much of that body of knowledge has no link to the financial crisis and remains as useful as ever.

Economics is in crisis: it is time for a profound revamp
We need a new science of macroeconomics. A science that starts from the assumption that individuals have severe cognitive limitations; that they do not understand much about the complexities of the world in which they live.
writes Paul De Grauwe, professor of economics at the University of Leuven and the Centre for European Policy Studies

Sunday, July 12, 2009

DIVERTIMENTOS

A crise, como a maré-baixa, pôs a descoberto várias e velhas querelas que se encontravam submersas pelas vagas de prosperidade, em grande parte aparente, que garantiram sucessos e fortunas a muita gente. Hoje, quando do lodo sobressaem os conflitos apaziguados no fundo em tempos de mará-alta, cada qual aponta o bode expiatório que convém aos seus interesses ou às suas convicções.
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Os economistas académicos (há outros?) envolveram-se, praticamente desde o começo da crise, numa dicussão, inevitavelmente académica, acerca da responsabilidade das academias na formação, incorrecta segundo alguns, daqueles que inventaram e distribuiram os produtos que intoxicaram a economia global. Quando a crise global emergiu, nós já tínhamos a nossa, mas essa tinha, e continua a ter, outros fertilizantes.
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De um momento para o outro, fomos surpreendidos pelas declarações de muitos daqueles que ensinam nas escolas de economia e gestão de que, eles mesmos, tinham andado a injectar no cérebro más teorias aos aprendizes de feiticeiro que, coitados deles, acabaram por lançar fogo ao sistema que lhes vinha a dar grande glória e grossos proventos. E nem o facto de Madoff ter sido condenado a 150 anos de prisão parece poder convencer esses professores de economia e gestão de que da sua arte pouco aproveitam artistas como o Bernard. A arte destes é outra e não haverá regulação, qualquer que ela seja, que os contenha dentro dos limites da legalidade, se, directa ou indirectamente, das suas artes resultarem benefícios para o infractor e seus comparsas.
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Outra guerra do alecrim trava-se entre os que privilegiam as finanças relativamente à economia e os que esquecem as finanças nas suas propostas económicas. Ora, para além da Direcção-Geral de Contribuições e Impostos, e das suas inevitáveis repartições de finanças, não sei doutra entidade onde economia e finanças não andem necessariamente de braço dado. De modo que a desintonia só pode atribuir-se a uma perspectiva irresponsável por parte daqueles para quem é possível comprar tudo porque serão outros a pagar a factura.
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É ainda nesta desintonia que aparece invocado o nunca demais venerado nome de J M Keynes. Mas a questão é outra. A política de investimentos públicos concretizados em doses maciças de betão armado, como estímulo da economia, com invocação de Keynes serve primordialmente os interesses cruzados entre políticos e empresários de obras públicas e não é de agora, porque estamos em crise dupla. Pelo contrário, ela tem caracterizado a gestão pública central e local, qualquer que tenha sido o sinal da conjuntura, que encaminhou para ela os recursos, próprios, doados ou emprestados, colocados à sua disposição. Deixar obra tem sido o lema aferidor dos mandatos. O keynesianismo, neo ou clássico, não tem nada a ver com as reais motivações de muitas destas obras.

Wednesday, June 10, 2009

CONFRONTO INTERMINÁVEL

Intellectual battle Economists clash on shifting sands
Robert Skidelsky
History is replete with famous intellectual battles. In the natural sciences, these have usually led to decisive victories, with good science ousting bad. There are few Ptolemaic astronomers left, or believers in the phlogiston theory of combustion. In the social sciences, the situation is different. There have been famous battles galore, but no decisive victories. Indeed, it is characteristic of the social sciences that their battles are interminable, temporary defeats being followed by the regrouping of the defeated forces for a renewed assault.
That economics is not a natural science is clear from the inconclusive engagements that have punctuated its own history. A hundred years ago the classical theory reigned supreme. This “proved” that free markets were automatically self-adjusting to full employment. They were either continually at full employment or, if disturbed by an outside shock, rapidly returned to it. The only thing capable of wrecking the workings of the market’s invisible hand was the visible hand of government interference.
Then along came the Great Depression of 1929-32 and John Maynard Keynes. Keynes “proved” that markets had no automatic tendency to full employment. This failing of the invisible hand justified government policies to maintain full employment.
For 30 years or so Keynesianism ruled the roost of economics – and economic policy. Harvard was queen, Chicago was nowhere. But Chicago was merely licking its wounds. In the 1960s it counter-attacked. The new assault was led by Milton Friedman and followed up by a galaxy of clever young disciples. What they did was to reinstate classical theory. Their “proofs” that markets are instantaneously, or nearly instantaneously, self-adjusting to full employment were all the more impressive because now expressed in mathematics. Adaptive Expectations, Rational Expectations, Real Business Cycle Theory, Efficient Financial Market Theory – they all poured off the Chicago assembly line, their inventors awarded Nobel Prizes.
No policymaker understood the maths, but they got the message: markets were good, governments bad. The Keynesians were in retreat. Following Ronald Reagan and Margaret Thatcher, Keynesian full employment policies were abandoned and markets deregulated. Then along came the almost Great Depression of today and the battle is once more joined.
Haunters of the blogosphere will know that the main ground of the current engagement is about the effect of the “stimulus”. FT readers will have caught a faint whiff of the intensity of this battle in Niall Ferguson’s column of May 30, headed “
A history lesson for economists in thrall to Keynes”. Prof Ferguson and Paul Krugman, the economist and New York Times columnist, had previously locked horns at a public symposium in New York on April 30. The historian had asserted that large fiscal deficits would push up long-term interest rates. This implied they would have a zero stimulatory effect: public spending would simply “crowd out” private spending. An enraged Mr Krugman responded on his blog that Keynes had proved that such crowding-out could occur only at full employment: if there were unemployed resources, fiscal deficits would not drive up interest rates without also expanding the economy. Prof Ferguson’s ignorant remarks only confirmed that “we’re living in a Dark Age of macroeconomics, in which hard-won know-ledge has simply been forgotten”.
However, this is not a debate between economists and historians. It is a battle within the economic profession – between the New Class-ical Economists and the New Keynesians. What is fascinating is that it is an almost exact rerun of the debate between Keynes and the British Treasury in 1929-30. The Treasury view was that bond-financed public spending was bound to diminish private spending by an equal amount. Keynes replied that if this were true it would apply to any new act of private spending. “In short, the fatalistic belief that there can never be more employment than there is is altogether baseless”.
Later the Treasury retreated to a more defensible position. The danger of extra government spending, it came to argue, lay not in the “physical” crowding out of resources but “psychological” crowding out. If doubts arose about the government’s solvency – a concern Prof Krugman has acknowledged – it might lead to capital flight, which would push up the cost of government borrowing.
Are we doomed to rehearse the same arguments time and again? In this particular debate, I am on Prof Krugman’s side, but I do not agree that Prof Ferguson’s position represents a retreat to a phlogiston state of economics. This is to take economics to be like a natural science, which Keynes never believed it was, because he thought its subject matter was much too variable over time.
Keynes’s view was that we need different economic models at different times. The beauty of his General Theory of Employment, Interest and Money was that it was general enough to accommodate a variety of models applicable to different conditions. Markets could behave in ways described by the classical and New Classical theories, but they need not. So it was important to take precautions against bad behaviour. Ultimately, the Keynesian revolution was a triumph not of good science over bad science, but of good judgment over bad judgment.
Lord Skidelsky’s ‘John Maynard Keynes: The Return of the Master’ will be published by Allen Lane in September

Friday, May 29, 2009

ANIMAL SPIRITS


Prefiro as boas notícias, e não me venham dizer que toda a gente prefere, porque não é verdade.

Se assim fosse, as más notícias não seriam vedetas das primeiras páginas e os maiores criminosos não teriam direito a fotografias de página inteira.

Hoje foram divulgados múltiplo sinais de recuperação da economia mundial mas nenhuma relevância lhes foi dada mesmo nos media mundialmente mais destacados. O Financial Times, por exemplo, dá mais destaque à crise na GM (GM and Magna near deal on Opel), às retribuições dos executivos na Alemanha (Germany gets tough on executive pay ); a GM é também tema prime no Wall Street Journal (GM Deal Improves Opel's Chances); o Economist, dedica a capa ao crescimento do perímetro do governo federal dos EUA e aborda os sintomas de recuperação da economia mundial para recomendar que não se lancem desde já foguetes de excitação (Drowning, not waving? Don't get too excited about some recent brighter economic news).

Por cá, o assunto não foi abordado nos nossos longos telejornais, mais ocupados, por exemplo, com as palmadas que a mãe russa deu à filha retirada à família portuguesa adoptiva. O Jornal de Negócios noticia, sem destaque, "matérias-primas e optimismo em relação à economia animam bolsas dos EUA"; O Diário Económico diz mais ou menos o mesmo.

Sabe-se que os ciclos económicos são como os papagaios de papel: antes de levantarem de vez, têm arranques abortados. Mas esta propensão para privilegiar o lado negativo da realidade e desvalorizar os sinais de retoma não ajuda a colocar a economia global nos eixos, por se desanimarem os "Animal Spirits". Psicologia versus economia ou psicologia versus psicologia?

Monday, March 23, 2009

CHUVA TORRENCIAL

Entre o monetarismo e o keynesianismo, a administração Obama escolheu os dois para dominar a crise. É tal a chuva de dólares desencadeada para contrariar a crise que é bem provável que a seguir à seca se siga uma inundação global.
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The Obama administration unveiled its plan to remove toxic assets from the books of the nation’s banks, betting that it can revive the U.S. financial system without resorting to outright nationalization.
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Investors Send Stocks Surging On Treasury Announcement
Gains amount to a vote of confidence by investors in government program to purchase troubled real-estate related loans and securities from banks.
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Aqui, explicação do crescimento e consequências da massa monetária em circulação.

Friday, March 20, 2009

Tuesday, March 10, 2009

A BANHA DA COBRA


A failure to control the animal spirits
By Robert Shiller

(... )
We are seeing, in this financial crisis, a rebirth of Keynesian economics. We are talking again of his 1936 book The General Theory of Employment, Interest and Money, which was written during the Great Depression. This era, like the present, saw many calls to end capitalism as we know it. The 1930s have been called the heyday of communism in western countries. Keynes’s middle way would avoid the unemployment and the panics and manias of capitalism. But it would also avoid the economic and political controls of communism. The General Theory became the most important economics book of the 20th century because of its sensible balanced message.
In times of high unemployment, creditworthy governments should expand demand by deficit spending. Then, in times of low unemployment, governments should pay down the resultant debt. With that seemingly minor change in procedures, a capitalist system can be stable. There is no need for radical surgery on capitalism.
Adherents to Keynes’s message were so eager to get this simple policy implemented, on both sides of the Atlantic, that they failed to notice – or perhaps they intentionally disregarded – that the General Theory also had a deeper, more fundamental message about how capitalism worked, if only briefly spelled out. It explained why capitalist economies, left to their own devices, without the balancing of governments, were essentially unstable. And it explained why, for capitalist economies to work well, the government should serve as a counterbalance.
The key to this insight was the role Keynes gave to people’s psychological motivations. These are usually ignored by macroeconomists. Keynes called them animal spirits, and he thought they were especially important in determining people’s willingness to take risks. Businessmen’s calculations, he said, were precarious: “Our basis of knowledge for estimating the yield 10 years hence of a railway, a copper mine, a textile factory, the goodwill of a patent medicine, an Atlantic liner, a building in the City of London amounts to little and sometimes to nothing.” Despite this, people somehow make decisions and act. This “can only be taken as a result of animal spirits”. There is “a spontaneous urge to action”.
There are times when people are especially adventuresome – indeed, too much so. Their adventures are supported in these times by a blithe faith in the future, and trust in economic institutions. These are the upswing of the business cycle. But then the animal spirits also veer in the other direction, and then people are too wary.
George Akerlof and I, in our book
Animal Spirits (Princeton 2009), expand on Keynes’s concept and tie it in to modern literature on behavioural economics and psychology. Much more clarity about the psychological underpinnings of animal spirits is possible today.
For example, social psychologists, notably Roger Schank and Robert Abelson, have shown how much stories and storytelling, especially human-interest stories, motivate much of human behaviour. These stories can count for much more than abstract calculation. People’s economic moods are largely based on the stories that people tell themselves and tell each other that are related to the economy.
We have seen these stories come and go in rapid succession in recent years. We first had the dotcom bubble and the envy-producing stories of young millionaires. It burst in 2000, but was soon replaced with another bubble, involving smart “flippers” of properties.
This mania was the product not only of a story about people but also a story about how the economy worked. It was part of a story that all investments in securitised mortgages were safe because those smart people were buying them. Those enviable people who are buying these assets must be checking on them, therefore we do not need to. We need only run alongside them.
What allowed this mania and these stories to persist as long as they did? To a remarkable extent we have got into the current economic and financial crisis because of a wrong economic theory – an economic theory that itself denied the role of the animal spirits in getting us into manias and panics.
According to the standard “classical” theory, which goes back to Adam Smith with his Wealth of Nations in 1776, the economy is essentially stable. If people rationally pursue their own economic interests in free markets they will exhaust all mutually beneficial opportunities to produce goods and exchange with one another. Such exhaustion of opportunities for mutually beneficial trade results in full employment. By this theory it could not be otherwise.
Of course, some workers will be unemployed. But they will be unable to find work only because they are in a temporary search for a job or because they insist on pay that is unreasonably high. Such unemployment is viewed as voluntary, and evokes no sympathy.
Classical theory also tells us that financial markets will also be stable. People will only make trades that they consider to benefit themselves. When entering financial markets – buying stocks or bonds or taking out a mortgage or even very complex securities – they will do due diligence in seeing that what they are buying is worth what they or paying, or what they are selling.
What this theory neglects is that there are times when people are too trusting. And it also fails to take into account that if it can do so profitably, capitalism will produce not only what people really want, but also what they think they want. It can produce the medicine people want to cure their ills. That is what people really want. But if it can do so profitably, it will also produce what people mistakenly want.
It will produce snake oil. Not only that: it may also produce the want for the snake oil itself. That is a downside to capitalism. Standard economic theory failed to take into account that buyers and sellers of assets might not be taking due diligence, and the marketplace was not selling them insurance against risk in the complex securities that they were buying, but was, instead, selling them the financial equivalent of snake oil.
There is a broader moral to all this – about the nature of capitalism. On the one hand, we want to take advantage of the wisdom of Adam Smith. For the most part, the products produced by capitalism are what we really want, produced at a price that we are willing and able to pay. On the other hand, when confidence is high, and since financial assets are hard to evaluate by those who are buying them, people will and do buy snake oil. And when that is discovered, as it invariably must be, the confidence disappears and the economy goes sour.
It is the role of the government at two levels to see that these events do not occur. First, it has a duty to regulate asset markets so that people are not falsely lured into buying snake-oil assets. Such standards for our financial assets make as much common sense as the standards for the food we eat, or the purchase medicine we get from the pharmacy. But we do not want to throw out the good parts of capitalism with the bad. To take advantage of the good parts of capitalism, when fluctuations occur it is the role of the government to see that those who can and want to produce what others want to buy can do so. It is the role of the government, through its counterbalancing fiscal and monetary policy, to maintain full employment.
The principles behind such an economy are not the principles behind a socialist economy. The government insofar as possible is only creating the macroeconomic conditions that will allow the economy to function well.
That is the role of government. Its role is to ensure a “wise laisser faire”. This is not the free-for-all capitalism that has been recommended by the current economic theory, and seems to have been accepted as gospel by economic planners, and also many economists, since the Thatcher and Reagan governments. But it also is a significant middle way between those who see the economic disasters and unemployment of unfettered capitalism, on the one hand, and those who believe that the government should play no role at all.
The idea that unfettered, unregulated capitalism would invariably produce the good outcomes was a wrong economic theory regarding how capitalist societies behave and what causes their crises. That wrong economic theory fails to take account of how the animal spirits affect economic behaviour. It fails to take into account the roles of confidence, stories and snake oil in economic fluctuation.
The writer is the Arthur M. Okun professor of economics at Yale University and co-founder and chief economist of MacroMarkets. To join the debate go to
www.ft.com/capitalismblog

Tuesday, January 27, 2009

MINSKY, A RAZÃO ANTES DE TEMPO



Synopsis
In his seminal work, Minsky presents his groundbreaking financial theory of investment, one that is startlingly relevant today. He explains why the American economy has experienced periods of debilitating inflation, rising unemployment, and marked slowdowns-and why the economy is now undergoing a credit crisis that he foresaw. Stabilizing an Unstable Economy covers:
The natural inclination of complex, capitalist economies toward instability
Booms and busts as unavoidable results of high-risk lending practices
“Speculative finance” and its effect on investment and asset prices
Government's role in bolstering consumption during times of high unemployment
The need to increase Federal Reserve oversight of banks

Sunday, December 28, 2008

OS MALEFÍCIOS DO NEO LIBERALISMO

O resultado da vitória neoliberal foi a arrogância que o dinheiro ganha quando está concentrado, o aumento das desigualdades, a corrupção e a captura do Estado pelas elites económicas e a instabilidade associada ao predomínio das forças do mercado global. Estas forças corroem tudo, incluindo as fundações morais que sustentam qualquer sistema económico viável.
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A discussão à volta dos malefícios do neo liberalismo envolvendo o posicionamento relativo do binómio Keynes - Hayek, ou dos respectivos neos, pode ser intelectualmente estimulante mas não abrirá nunca qualquer outra janela por onde se possa vislumbrar uma oportunidade de recrear a herança de qualquer deles escalpelizando a semântica das suas palavras ou a filosofia subjacente às suas convicções. Será muito interessante do ponto de vista da história das ideias mas é muito provável que não se descortinarão outros contributos para a ultrapassagem dos muitos dilemas que continuam a colocar-se aos promotores de políticas económicas. Se a história se repete, a história económica repete-se mas as mesmas terapêuticas não conduzem a idênticos resultados. Se o Washington Consensus agudizou desastres, o keynesianismo já tinha falhado noutras situações. Mais do que discutir Keynes, ou Hayek, hoje, o que vale a pena é pensar as medidas, globais e específicas, que a ultrapassagem desta crise requer e adoptar os antídotos que possam prevenir as causas que a provocaram. Se estamos condenados a cometer erros, que eles sejam novos, a estrear.
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Era esperável, desta vez, que os neo liberais viessem em defesa da sua dama quando esta tivesse resvalado e que os neo marxistas retemperassem forças e viessem reclamar outra vez as razões do patrono. A dialética entre os extremos neste rodeo cinge-se à expectativa das partes no derrube da parte contrária.
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Esta crise, para além da crise de confiança que sempre paira sobre todas as crises económicas foi, senão originada, muito potenciada pelos abusos de confiança, de vária ordem e grandeza, de muitos agentes fianceiros. Mas é muito claro que não podem assacar-se ao neo liberalismo o exclusivo dos malefícios que lhe registam no cartório. São por demais evidentes as ocorrências dos mesmos factos perversos em ambientes de inspiração oposta. Por outro lado, o alargamento do perímetro do Estado não garante, bem pelo contrário, a redução daqueles abusos, e temos entre nós muitos exemplos que lamentavelmente o confirmam de forma ineludível.
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Não há nada a fazer? Há muito a fazer.
Desde logo a adopção de medidas e sanções que fortemente desmotivem a repetição dos actos que potenciaram esta crise. Crise que é, sobretudo, uma crise de democracia no sentido de que os cidadãos estão afastados da supervisão dos seus interesses. Para dar um exemplo: Os fundos de pensões, criados para garantir a subsistência dos cidadãos após a vida activa, não deveriam conter, sob razão alguma, activos não garantidos e os participantes, ou seus delegados, deveriam escrutinar de forma permanente a evolução dos portfólios respectivos.
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No rescaldo da Grande Depressão foi instituído nos EUA o The Glass-Steagall Act de forma a prevenir a utilização da banca de depósitos em operações especulativas. O sistema funcionou bem, protegendo a economia de crises financeiras, até à década de 80, quando a emergência de bancos de poupança e empréstimos para habitação provocou a falência de um deles e uma enorme factura de cerca de 5% do GDP teve de ser paga pelos contribuintes norte-americanos.
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Há, realmente, muita coisa a fazer. Repor o espírito do The Glass-Steagall Act é uma delas.
O outro será a extinção de offshores. Mas se esta for uma acção impossível, deveriam os bancos também distinguir-se entre os que operassem com offshores e os que não o fizessem.
Afinal se há proibição de fumar em recintos públicos, proibição que aconteceu em ambiente neo liberal, porque não obrigar os bancos a optarem por alinhar dentro ou fora de áreas de confiança conhecidas?

Wednesday, December 24, 2008

OUTRA VEZ, OS CINCO.

Partiram "os cinco" do princípio que a crise germinou e explodiu em consequência de umas teorias malévolas que ensinaram aos banqueiros na escola, e que eles, coitados deles, inocentemente fiados no catecismo do mal aplicaram com todo o rigor, porque lhes enchia os bolsos, e, deste modo espatifaram o sistema.
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Tretas, meus amigos.
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Não há nenhuma teoria económica conhecida que proponha o roubo. Ladrão não precisa de frequentar as escolas de gestão e munir-se de um MBA para roubar. Criou o neo liberalismo as ocasiões que fizeram os ladrões? Temos de confrontar essa hipótese com a contrária. E confrontando-a, sabe-se há muito que não há sistema imune ao roubo quando as leis são frouxas ou os juízes venais.
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A União Soviética implodiu porquê? Por várias razões mas sobretudo porque a nomenclatura se apoderou do poder sem limitações e das mordomias reservadas à clique que manobrava a seu belo prazer.
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Não quero ser tão ingénuo que não reconheça a permeabilidade do liberalismo (o neo ou outro) às tentações dos instintos primários.Mas não penso que o sistema contrário se lhe oponha com mais garantias.
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Mas, sobretudo, recuso-me a aceitar que os desaforos cometidos possam ser atribuídos a uma teoria, (se for má não é teoria, é um flop) ilibando os verdadeiros culpados.
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Não meus amigos, não tragam, por este motivo, Stuart Mill ou Adam Smith, Keynes ou Friedman, Mises ou Hayek, a depor.
Porque se o fizerem estão a fazer esquecer o que deve ser feito: Levar os burlões à barra, encarcerá-los e obrigá-los a devolver o que espoliaram.
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Surpreendentemente, ou não, voltaram a aparecer os pequenos cartazes, toscos, que oferecem a intermediação para o financiamento ou refinanciamento de habitações, na hora. "Bad credit ok".
Sintomático que a subprime continua à venda na rua.
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Tuesday, December 23, 2008

KEYNES RESSUSCITADO E O HELI BEN


O QUE DIZ MARTIN WOLF
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Keynes offers us the best way to think about the financial crisis
Sixty-two years after Keynes’ death, in another era of financial crisis, it is easier for us to understand what remains relevant in his teaching, writes
Martin Wolf

...The shorter-term challenge is to sustain aggregate demand, as Keynes would have recommended. Also important will be direct central-bank finance of borrowers. It is evident that much of the load will fall on the US, largely because the Europeans, Japanese and even the Chinese are too inert, too complacent, or too weak. Given the correction of household spending under way in the deficit countries, this period of high government spending is, alas, likely to last for years. At the same time, a big effort must be made to purge the balance sheets of households and the financial system. A debt-for-equity swap is surely going to be necessary.
The longer-term challenge is to force a rebalancing of global demand. Deficit countries cannot be expected to spend their way into bankruptcy, while surplus countries condemn as profligacy the spending from which their exporters benefit so much. In the necessary attempt to reconstruct the global economic order, on which the new administration must focus, this will be a central issue. It is one Keynes himself had in mind when he put forward his ideas for the postwar monetary system at the Bretton Woods conference in 1944.
No less pragmatic must be the attempt to construct a new system of global financial regulation and an approach to monetary policy that curbs credit booms and asset bubbles. As Minsky * made clear, no permanent answer exists. But recognition of the systemic frailty of a complex financial system would be a good start."

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Keynes’s difficult idea (Paul Krugman)
Great piece by Martin Wolf today. I particularly liked this:
Keynes’s genius – a very English one – was to insist we should approach an economic system not as a morality play but as a technical challenge.
That’s the point of my favorite Keynes quote, where he
declared of the Great Depression, “we have magneto trouble.”
What’s been striking me lately is how many people who talk and write about macroeconomics just don’t get Keynes’s essential point — the fact that economies can suffer from insufficient aggregate demand because people want to acquire liquid assets rather than real goods. Not to single out any one commentator, but this morning I read
this:
Government spending doesn’t increase aggregate demand. All it does is transfer spending power from one party to another by borrowing from or taxing the public.
That’s exactly the infamous “
Treasury view” from the 1920s, against which Keynes had to struggle. And it’s still out there.
Anyway, good for Martin; we’re going to need every possible voice to counter the niggling nabobs of negativism.

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*Hyman Minsky (September 23, 1919, Chicago, Illinois – October 24, 1996), was an American economist and professor of economics at Washington University in St. Louis. His research attempted to provide an understanding and explanation of the characteristics of financial crises. Minsky was sometimes described as a radical Keynesian because he supported some government intervention in financial markets and opposed some of the popular deregulation policies in the 1980s, and argued against the accumulation of debt. His research, nevertheless, endeared him to Wall Street. [1].

Nouriel Roubini perguntava a 30 de Julho de 2007: "Are We at the Peak of a Minsky Credit Cycle?" - Transcrito aqui no Aliás.

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‘Helicopter Ben’ confronts the challenge of a lifetime
Central banks may resort to their most powerful weapons against deflation: the printing press and the ‘helicopter drop’ of money. Will this work? Yes. But returning to normality will prove far more elusive, writes
Martin Wolf


"...Ironically, we are where we are partly because the Fed was so terrified of deflation six years ago. Now, a credit bubble later, Mr Bernanke has to cope with what he then feared, largely because of the Fed’s heroic attempts at prevention. Similar dangers now arise with the drastic measures that look ever more likely. This time, I suspect, the result will ultimately not be deflation but unexpectedly high inflation, though probably many years hence."


Sunday, December 14, 2008

COMBATE À CRISE - 3

foto via O Jumento

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Obama estabeleceu um plano para reanimar a economia norte-americana voltado para a reparação de estradas, autoestradas e pontes, que considera ser o maior desde que foi criada a rede de autoestradas na década de 50. (vd. post anterior: Stimulus Package To First Pay for Routine Repairs)

Até agora, não li aqui em parte alguma contestação a este plano com base no facto de, eventualmente, se dirigir mais à empregabilidade de mão-de-obra indiferenciada, nomeadamente imigrante sul-americana, do que aos norte-americanos dispensados pelas companhias financeiras em crise, por exemplo.
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O argumento de MFLeite de que o programa das obras públicas proposto pelo governo português servirá sobretudo para ocupar mão-de-obra imigrante decorre, neste ponto, de uma perspectiva completamente oposta daquela em que se situa Obama.
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Em Portugal, onde a obra nova enche mais o olho do eleitor e a conta dos empreiteiros, há muito que tem sido dada prioridade às autoestradas do que às estradas secundárias, à habitação nova do que à recuperação da degradada, ao crescimento das periferias do que à revitalização dos centros antigos. Olha-se à nossa volta e, se temos a preocupação de reparar, concluímos que há um Portugal imenso a refazer. Esperamos que sejam os imigrantes a fazê-lo? Todos, ou a maioria dos portugueses desempregados têm execesso de habilitações para essa ocupação primordial de reconstruir o país?
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È, provavelmente, complicado inverter a política de apoio ao desemprego numa política de apoio ao emprego, reencaminhando grande parte dos fundos da segurança social para a produção de riqueza e redução da inactividade que, frequentemente, gera maus vícios. Mas o facto de ser complicado não deve justificar que não se prossiga.
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MFLeite deveria ter pensado nisto.