This paper argues that the stock market crash of 2008, triggered by a collapse
in house prices, caused the Great Recession. The paper has three parts.
First, it provides evidence of a high correlation between the value of the
stock market and the unemployment rate in U.S. data since 1929. Second, it
compares a new model of the economy developed in recent papers and books
by Farmer, with a classical model and with a textbook Keynesian approach.
Third, it provides evidence that fiscal stimulus will not permanently restore
full employment. In Farmer’s model, as in the Keynesian model, employment
is demand determined. But aggregate demand depends on wealth, not on
income.