1. Option Value or Option Price? Principals for Empirical Resource Valuation Under Uncertainty?;Bishop,1984
2. Contingent valuation of environmental assets: Comparison with a simulated market;Bishop;Nat. Resour. J.,1983
3. The Total Value of Wildlife Resources: Conceptual and Empirical Issues;Boyle,1985
4. Estimating option prices and existence values for wildlife resources;Brookshire;Land Econom.,1983
5. Valuing Environmental Goods: An Assessment of the Contingent Valuation Method;Cummings,1986