The measurement of passive use values has become an important issue in environmental economics. In this paper we examine an extension or variant of contingent valuation, the choice experiment, which employs a series of questions with more than two alternatives that are designed to elicit...

We extend count data travel cost modeling by developing a utility theoretic system of semilogarithmic recreation demand equations. The restrictions required to make the system utility theoretic are applied during estimation. The model is applied to individual wilderness recreation trips in a...