This paper studies a quantitative general equilibrium model of housing. The model has two key elements not previously considered in existing quantitative macro studies of housing finance: aggregate business cycle risk and a realistic wealth distribution driven in the model by bequest heterogeneity in preferences. These features of the model play a crucial role in the following results. First, a relaxation of financing constraints leads to a large boom in house prices. Second, the boom in house prices is entirely the result of a decline in the housing risk premium. Third, low interest rates cannot explain high home values.

This paper estimates the impact of globalization on markups, and the effect of changing markups on US welfare, in a monopolistic competition model. We work with symmetric translog preferences, which allow for endogenous markups and firm entry and exit, thereby changing product variety. We find that between 1992 and 2005, US import shares rose and US firms exited, leading to an implied fall in markups, while variety went up because of imports. US welfare rose by nearly 1 percent as a result of these changes, with product variety contributing one-half of that total and declining markups the other half.