We posit the opportunity cost of time required to manage risky investments, including conducting research and performance monitoring, as a potential explanation for the equity premium puzzle. An economic agent, who should allocate a limited amount of time to labor, leisure, and risky investment,...

We study the impact of barriers to international capital flows with stock price data from 11 countries whose stock markets feature shares restricted to locals and otherwise identical shares available to foreigners. Large price premiums for unrestricted shares relative to matching restricted...

We study the impact of exchange rate fluctuations and political risk on the risk premiums reflected in cross-sections of individual equity returns from Mexico, a country that has experienced significant monetary and political turbulence. Indicators from Mexico's currency and sovereign debt...

We study the intraday behavior of bid-ask spreads for actively traded CBOE options and for their NYSE-traded underlying stocks. We confirm previous findings that stocks have a U-shaped spread pattern; however, the options display a very different intraday pattern—one that declines sharply...