We construct portfolios of Samp;P500 futures and their associated options, which are Delta (price) and Vega (volatility) neutral. These systematically earn negative abnormal returns, and suggest that out of the money puts are too expensive, relative to out of the money calls. We give evidence...

This article develops a new trinomial tree model for barrier options. It is well-known that for barrier options, the positions of nodes in the tree with respect to the barrier value are critical. We use a time-dependent shift to position the tree optimally with respect to the barrier. The model...

There exist a number of approximation methods for the price of average rate options, when the underlying asset is a currency or equity. Realistic pricing models for average interest rate caps based on interbank offered rates have not yet been published. In this paper, we propose to adapt the...

We construct portfolios of Samp;P500 futures and their associated options, which are long out of (in) the money puts and short out of (in) the money calls, and which are delta (price) and vega (volatility) neutral, with respect to a GARCH type model for the underlying price. These systematically...

We model seasonal, uncertain production of a commodity, with speculative storage. We allow agents to be risk averse, and we allow planned production to respond to price prospects. We also explicitly consider the presence or absence of a futures market in the commodity. Our technique involves a...

We study a continuous time model of a levered firm with fixed assets generating a cash flow which fluctuates with business conditions. Since external finance is costly, the firm holds a liquid (cash) reserve to help survive periods of poor business conditions. Holding liquid assets inside the...

Since its introduction in 1973, the Black-Scholes model has found increasingly more resistance in application. In order to use Black-Scholes to price any option, one needs to know the implied volatility surface. The existence of such surface is an evidence of misspecification of the model. In...