We show that a straight forward approximation of the distribution of durable goods holdings gives rise to a tractable equilibrium (S,s) model of durable demand. We analyze both competitive and monopoly supply. We show that equilibrium interactions lead to elongated impulse responses in demand,...

In the current structure of the U.S. residential mortgage market, a fall in property values may make it very difficult for homeowners to refinance their mortgages to take advantage of falling interest rates. In this paper, we explain the institutional background for this effect and quantify its...

Measured productivity is strongly procyclical. Real business cycle theories suggest that actual fluctuations in productivity are the source of fluctuations in aggregate output. Keynesian theories maintain that fluctuations in aggregate output come from shocks to aggregate demand. Keynesian...

What shocks account for the business cycle frequency and long run movements of output and prices? This paper addresses this question using the identifying assumption that only supply shocks, such as shocks to technology, oil prices, and labor supply affect output in the long run. Real and...