This paper investigates the welfare cost of business cycles in an economy where households have heterogeneous trading technologies. In an economy with aggregate risk, the different portfolio choices induced by heterogeneous trading technologies lead to a larger consumption inequality in...

It is a robust finding that technical trading rules applied to foreign exchange markets have earned substantial excess returns over long periods of time. However, the approach to risk adjustment has typically been rather cursory, and has tended to focus on the CAPM. We examine the returns to a...

"Human capital-based theories of cities suggest that large, economically diverse urban agglomerations increase worker productivity by increasing the rate at which individuals acquire skills. One largely unexplored implication of this theory is that workers in big cities should see faster growth...