PassedOut, on 2010-November-01, 08:15, said:
Paul Krugman has been wrong before. And multiple other high profile economists disagree with him. His internal logic of his post is somewhat sketchy: he says someones debt is someone elses asset, and therefore borrowing leads to no net change in world income. By the same logic borrowing less can never lead to a change in world income. Therefore it can hardly to be to blame for the extended recession.
Probably there is some truth in what he says, but more likely it is the recapitalisation of the financial industry that is taking time. The financial industry is responsible for most investment, as it takes money from savers and invests it in companies in a (hopefully) productive manner. Normally as one person pays down their debt the banks invest that money either in more loans, or in the stockmarket etc. However, now they wish to enhance the mount of capital then they must do it by taking in the money from loan repayments and *not* investing it. This will obviously depress job creation. Whether banks do it now or later is somewhat irrelevant. Having large governments pay of their debts will help to recapitalise the financial industry, as it will convert bonds into capital. How much depends on who holds the bonds, which I don't know, but it may well be that continued government borrowing from financial markets, by slowing recapitalisation, may slow the process of recapitalisation and lead to a longer recession.
I see the arguments in both directions. Macro economics is complicated, and Paul krugman pretending that the answer is simple doesn't really help anyone.
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Suppose I make the following argument:
1) There is only so much capital in the world.
2) Government borrowing extracts capital from the financial markets
3) Investors in possession of free capital try to find somewhere to invest it.
Thus, government borrowing always reduces private investment.
Alternatively I could argue:
1) Government spending stimulates the economy.
2) Higher consumption makes investment more appealing.
3) This will lead to greater investment in the local economy.
Krugman obviously thinks the second argument is sounder than the first. Perhaps, since the second argument being a argument for investing in america, as opposed to generally, so it could be true that government borrowing reduces world investment but increases the proportion invested in america, which means you would be founding your future prosperity by keeping other countries in poverty. Alternatively it could be the case that these effects are automatically of the same size, and provided the government uses the money wisely, it has no effect on total investment.
If economists really knew the answer to these questions, there would be a consensus, the lack of consensus shows that no one really knows what will happen. Compare this to the overwhelming consensus of economists that the bank bailouts were a good move.
The physics is theoretical, but the fun is real. - Sheldon Cooper