common explanation for why firms incur sunk costs is that technology considerations make them inescapable. This paper shows that sometimes firms may prefer to make early (less informed) investment decisions even when technology allows such decisions to be delayed. Sunk costs commit and clarify a...

Substantial progress has been made in extending the Black-Scholes model to incorporate such features as stochastic volatility, stochastic interest rates and jumps.On the empirical front, however, it is not yet known whether and by how much each generalized feature will improve option pricing and...

Substantial progress has been made in extending the Black- Scholes model to incorporate such features as stochastic volatility, stochastic interest rates and jumps. On the empirical front, however, it is not yet known whether and by how much each generalized feature will improve option pricing...

This paper examines the related questions, of the time-series behavior of expected returns and of return predictability, within the framework of the stock-bond pricing model proposed in Mamaysky (2002). The key advantage of the model-based approach adopted in this paper is that the quantities of...

Money managers have little control over the values of their individual holdings, but they have considerable control over the risk exposure of their portfolios. This article introduces new tools for the risk management of mortgage portfolios. We extend the traditional duration analysis to two...

This paper studies the equilibrium valuation of foreign exchange-contingent claims. The basic framework is the continuous-time counterpart of the classic Lucas (1982) two-country model, in which exchange rates, term structures of interest rates and, in particular, factor risk prices are all...

This article empirically analyzes some properties shared by all one-dimensional diffusion option models. Using S&P 500 options, we find that when sampled intraday (or inter-day), (i) call (put) prices often go down (up) even as the underlying price goes up, and (ii) call and put prices often...

Recent empirical studies find that once an option pricing model has incorporated stochastic volatility, allowing interest rates to be stochastic does not improve pricing or hedging any further while adding random jumps to the modeling framework only helps the pricing of extremely short-term...

This paper studies the equilibrium valuation of foreign exchange-contingent claims. The basic framework is the continuous-time counterpart of the classic Lucas (1982) two-country model, in which exchange rates, term structures of interest rates and, in particular, factor risk prices are all...

We derive semi-closed form solutions for the forward and futures exchange rates, European foreign currency options, currency forward options, and currency futures options when the domestic and foreign interest rate movements follow mean reverting diffusion processes. These solutions are...