We propose a method for solving continuous-state and action-stochastic dynamic programs that is a hybrid between the continuous space projection methods introduced by Judd and the discrete space methods introduced by Bellman. Our hybrid approach yields a smooth representation of the value...

We use a regulatory model with resistance evolution in two pests to insecticidal Bt cotton and pyrethroids (a conventional insecticide) to examine non-Bt cotton (refuge) planting requirements designed to manage Bt-resistance evolution in the midsouth. Our analysis suggests that reduced refuge...

Two papers of (Pindyck, 2000) and (Pindyck, 2002) that modeled the control of stock pollutants as optimal stopping problems contained closed form solutions that are incorrect. This paper discusses a subtle error in the derivation and demonstrates how solutions to these and related problems can...

We use a regulatory model with resistance evolution in two pests to insecticidal Bt cotton and pyrethroids (a conventional insecticide) to examine non-Bt cotton (refuge) planting requirements designed to manage Bt-resistance evolution in the midsouth. Our analysis suggests that reduced refuge...

Existing tests of spatial market integration are commonly based on statistical criteria without an explicit link to an economic model of price determination. This article proposes new measures of market integration defined directly in terms of a well-known spatial price determination model and...

A recently proposed explanation for futures price backwardation is examined. An equilibrium model with spatial heterogeneity leads to the interpretation of backwardations as mismeasurement by the analyst. However, the model predicts that backwardations are more affected by the location of stocks...

When post-harvest marketing strategies are restricted by disallowing speculative purchases, sales out of storage becomes an irreversible decision and the dynamic marketing problem becomes analogous to the optimal exercise of a financial option. The optimal marketing strategy is to hold at low...

The major mechanisms for the transference of price and output risk by crop producers are examined. These include the use of futures and options contracts, government price-support and deficiency-payments programs, and crop insurance. Iso-revenue curves are used to highlight the distinctions...