Yoo, Seung-Hoon; Kwak, Seung-Jun; Kim, Tai-Yoo - In: Applied Economics 33 (2001) 4, pp. 523-529
Modelling household behaviour with the data from dichotomous choice contingent valuation (DCCV) surveys is often complicated by zero willingness to pay (WTP) responses in the sample. To deal with the zero responses, a two-equation model is considered, which incorporates a two-level decision...