Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/155436
Authors: 
Ahlheim, Michael
Frör, Oliver
Nguyen Minh Duc
Rehl, Antonia
Siepmann, Ute
Pham Van Dinh
Year of Publication: 
2017
Series/Report no.: 
Hohenheim Discussion Papers in Business, Economics and Social Sciences 03-2017
Abstract: 
In Stated Preference studies for the appraisal of environmental projects in poor countries or regions it often turns out that the stated willingness to pay of people for environmental improvements, which is used as measure of individual welfare changes, is very low. This is often interpreted as the result of extremely tight budget constraints, which make it impossible that people express their true appreciation of an environmental project in terms of their willingness to pay for it. Therefore, it is sometimes suggested to use labour contributions instead of money as a numeraire to measure utility in such studies. In this paper we show theoretically and empirically that this suggestion is not compatible with the principles of welfare theory because of several inconsistencies. We also illustrate the validity of our arguments empirically based on the results of a Contingent Valuation study conducted in a rural area in northern Vietnam.
Subjects: 
Contingent Valuation
Cost-benefit Analysis
Developing Countries
Public Expenditures
Vietnam
Willingness to work
JEL: 
D61
H43
Q51
Persistent Identifier of the first edition: 
Document Type: 
Working Paper

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