In this paper, we investigate empirically the well-known put-call parity no-arbitrage relation in the presence of short sale restrictions. We use a new and comprehensive sample of options on individual stocks in combination with a measure of the cost and difficulty of short selling, specifically...

This paper provides one potential explanation for the rise, persistence and eventual fall of internet stock prices. Specifically, we appeal to a model of heterogenous agents with varying degrees of beliefs about asset payoffs who are subject to short sales constraints. In this framework, it is...

An insightful look at how to reform our broken financial system The financial crisis that unfolded in September 2008 transformed the United States and world economies. As each day's headlines brought stories of bank failures and rescues, government policies drawn and redrawn against the backdrop...