Scandinavian Working Papers in Economics

Working Papers in Economics,
University of Gothenburg, Department of Economics

No 252: Hypothetical bias in choice experiments: Within versus between subject tests

Olof Johansson-Stenman () and Henrik Svedsäter ()
Additional contact information
Olof Johansson-Stenman: Department of Economics, School of Business, Economics and Law, Göteborg University, Postal: Box 640, SE 40530 GÖTEBORG
Henrik Svedsäter: Department of Psychology, Göteborg University, Postal: Box 500, SE 40530 GÖTEBORG

Abstract: A choice experiment eliciting environmental values is set up in order to test for hypothetical bias based on both within and between sample designs. A larger hypothetical bias was found in the latter case, which explains parts of the previous diverging results in the literature. People seem to prefer to do what they say they would do.

Keywords: Stated-preference methods; choice experiment; hypothetical bias; internal consistency; non-market valuation

JEL-codes: C91; Q28

10 pages, April 20, 2007

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