A discussion with University of Wisconsin economics professor Charles Engel, a senior fellow of the Dallas Fed's Globalization and Monetary Policy Institute, ranges from the current financial crisis to the unpredictability of exchange rates.

Previous tests of stock index arbitrage models have rejected the no-arbitrage constraint imposed by these models. This paper provides a detailed analysis of actual S&P 500 arbitrage trades and directly relates these trades to the predictions of index arbitrage models. An analysis of arbitrage...

Forward exchange rate unbiasedness is rejected in tests from the current floating exchange rate era. This paper surveys advances in this area since the publication of Hodrick's (1987) survey. It documents that the change in the future exchange rate is generally negatively related to the forward...

This paper characterizes the integration patterns of international currency unions (such as the CFA Franc Zone). We empirically explore different features of currency unions, and compare them to countries with sovereign monies by examining the criteria for Mundell's concept of an optimum...