Bubbles are Not Funny: The 99% Gets Blasted When They Burst


Paul Krugman tells us that Larry Summers joined the camp concerned about secular stagnation in his I.M.F. talk last week, something that I had not picked up from prior coverage of the session. This is good news, but I would qualify a few of the points that Krugman makes in his elaboration of Summers' remarks.

First, while the economy may presently need asset bubbles to maintain full employment (a point I made in Plunder and Blunder: The Rise and Fall of the Bubble Economy), it doesn't follow that we should not be concerned about asset bubbles. The problem with bubbles is that their inflation and inevitable deflation lead to massive redistribution of wealth.

In the case of the housing bubble in particular we saw millions of people lose much or all of their wealth from buying homes at bubble-inflated prices. The loss of housing wealth is especially devastating because housing is a highly leveraged asset even in normal times and it is an asset often held by middle and moderate income households. It was great that the bubble was able to spur growth and get the economy close to full employment, however the subsequent crash was pretty awful. It would be incredibly irresponsible to go through another round like this.

The second qualification is that it is reasonable to believe that aggregate consumption levels will depend at least in part on the distribution of income. The upward redistribution in the last three decades, from middle and lower end wage earners to the high end wage earners in the 80s and 90s, and to corporate profits in the last decade, likely had an effect in depressing consumption. The question here is whether the marginal propensity to consume out of income is higher for a retail clerk or factory worker than a doctor or CEO. I would be willing to argue that it is, which means that the upward redistribution of income over this period had a depressing effect on consumption. (As a practical matter, this depressing effect was offset by the asset bubbles in the 1990s and 2000s.)

The third qualification is that Summers and Krugman seem to be leaving net exports out of the picture. In the old textbooks, rich countries like the United States were supposed to be net exporters of capital to developing countries. This implies that instead of running trade deficits we should be running surpluses This would both mean a higher return on capital in rich countries and more rapid growth in developing countries, which would be able to use imported goods and services to build up their capital stock even as they sustained a decent level of consumption for their populations.

The real world never followed the textbook story very closely, but it followed especially badly in the years following the 1997 East Asian financial crisis. The harsh terms of the bailout (led in part by Larry Summers) led to a situation in which developing countries began to accumulate massive amounts of reserves to protect themselves from ever being dictated to by the IMF in the same way. Instead of being importers of capital from rich countries developing countries became huge exporters of capital. This meant that the United States in particular had a huge trade deficit that created a huge drag on demand.

Finally, as an alternative to trying to increase demand to deal with secular stagnation, countries could try to reduce supply. This should not sound too crazy. Western Europeans work on average 20 percent fewer hours a year than do people in the United States. These countries mandate paid vacation (at least four weeks a year), paid sick days, paid parental leave and other forms of paid time off. France has a 35-hour work week. Remember, the problem is too much supply not too little. Reduced work hours (i.e. more leisure) is an easy way to deal with this "problem."

The long and short of the matter is that secular stagnation is really a story of too much wealth. It is absurd that this ends up impoverishing countries and leading to mass suffering. Keynes taught us how to deal with this problem almost 80 years ago. We know how to prevent the suffering; we just lack the political force to stop it.

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