Abstract
In models with unobserved taste heterogeneity, distributional assumptions can be placed in two ways: (1) by specifying the distribution of coefficients in the utility function and deriving the distribution of willingness to pay (WTP), or (2) by specifying the distribution of WTP and deriving the distribution of coefficients. In general the two approaches are equivalent, in that any mutually compatible distributions for coefficients and WTP can be represented in either way. However, in practice, convenient distributions, such as normal or log-normal, are usually specified, and these convenient distributions have different implications when placed on WTP’s than on coefficients. We compare models that use normal and log-normal distributions for coefficients (called models in preference space) with models using these distributions for WTP (called models in WTP space). We find that the models in preference space fit the data better but provide less reasonable distributions of WTP than the models in WTP space. Our findings suggests that further work is needed to identify distributions that either fit better when applied in WTP space or imply more reasonable distributions of WTP when applied in preference space.
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© 2005 Springer
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Train, K., Weeks, M. (2005). Discrete Choice Models in Preference Space and Willingness-to-Pay Space. In: Scarpa, R., Alberini, A. (eds) Applications of Simulation Methods in Environmental and Resource Economics. The Economics of Non-Market Goods and Resources, vol 6. Springer, Dordrecht. https://doi.org/10.1007/1-4020-3684-1_1
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DOI: https://doi.org/10.1007/1-4020-3684-1_1
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-3683-5
Online ISBN: 978-1-4020-3684-2
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