This paper makes an attempt to introduce preference uncertainty into discrete choice models used in contingent valuation experiments. We develop an econometric model which may characterize the degree of the uncertainty and provide an empirical illustration of the suggested model.

We consider sequences where a subset of public goods are systematically being created or destroyed. For the case of strict Hicksian substitutes between all pairs of this subset of public goods, we show that willingness to pay for an increase in a particular public good is strictly decreasing the...