This travel cost demand study included prices for closely related goods such as money and time costs of on-site time, on-site purchases, and other trip activities. A disequilibrium labor market model was estimated. The sample was mainly composed of persons who did not substitute earned income...

The contingent valuation approach was applied to the problem of estimating the recreation benefits from alleviating congestion at Indian Peaks wilderness area, Colorado. A random sample of 126 individuals were interviewed while hiking and backpacking at the study site in 1979. The results...

The opportunity cost of time is usually a significant part of the price variable in the travel cost demand model. Thus, its accurate measurement is important to the estimation of demand and benefit valuation for nonmarket resources. This paper empirically tests models which assume that income is...