Robert M. Solow: The One Percent:
The cheerful blandness of N. Gregory Mankiw’s “Defending the One Percent” (Summer 2013, pp. 21–34) may divert attention from its occasional unstated premises, dubious assumptions, and omitted facts. I have room to point only to a few such weaknesses; but the One Percent are pretty good at defending themselves, so that any assistance they get from the sidelines deserves scrutiny.
First, the paper starts off by invoking an iconic Steve Jobs and, without making an explicit claim, carries on tacitly as if the One Percent consists mainly of entrepreneurs whose innovations generate a lot of consumer surplus for the world. There would be less alarm if that were so. But a large and–before the crisis–increasing part of the income of the One Percent arises in the financial services industry, and a large and increasing part of that has come from trading profits. Much of the income in question must therefore be the payoff to asymmetric information, and generates precious little in the way of aggregate consumer surplus. Consider this history (for details see Murphy 2012, especially pp. 307–8): from 1970 to about 1995, the median realized compensation for chief executive officers in Standard and Poor’s 500 broker-dealer firms was essentially indistinguishable from that of Standard and Poor’s 500 banks and industrials. Rather suddenly, between 1996 and 2006, the median broker-dealer chief executive officer started to collect anywhere between 7 and 10 times the median compensation of the other two groups. This does not smell like the Goldin and Katz (2008) story. I’ll swallow “innovation,” but socially productive innovation, no thanks. Extreme inequality is not primarily about useful entrepreneurs. On financial profits and inequality, Mankiw waffles uncomfortably.
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