The authors examine the characteristics of optimal monetary policies in a general equilibrium model with incomplete markets. Markets are incomplete because of uninsured preference uncertainty and because productive capital is traded infrequently. Rational individuals are willing to hold a liquid...

This paper suggests tests for the heterogeneity of parameters in linear least-squares estimation. The tests are based on the properties of resampled estimates, and test the hypotheses that the parameters have a common mean, or that they are independently and identically distributed. The test can...

The failure of the asset market to be complete causes serial dependence in output and prices, which is suboptimal. The authors consider an economy with white noise shocks. When the asset market is complete, an optimal, competitive allocation inherits this strong stationarity. When the asset...

This paper derives a concept of aggregate real income for a competitive economy in general equilibrium consisting of heterogeneous infinitely lived people and relates it to current and future consumption possibilities. An important characteristic of our measure of income, which we call Real...