Scandinavian Working Papers in Economics
Working Papers in Economics,
University of Gothenburg, Department of Economics
No 191: How much is too much? - An investigation of the effect of the number of choice sets, starting point and the choice of bid vectors in choice experiments
Fredrik Carlsson () and Peter Martinsson ()
Additional contact information
Fredrik Carlsson: Department of Economics, School of Business, Economics and Law, Göteborg University, Postal: Box 640, SE 405 30 GÖTEBORG
Peter Martinsson: Department of Economics, School of Business, Economics and Law, Göteborg University, Postal: Box 640, SE 405 30 GÖTEBORG
Abstract: In a split sample design, we examine how the number of choice sets, design of the first choice set (starting point), and the choice of attribute levels in the cost attribute affect the precision in the elicited preferences in otherwise completely identical choice experiment surveys. These issues are investigated for Swedish households’ marginal willingness to pay to reduce power outages. Our results indicate that neither the number´of choice sets nor the starting point choice set has a significant impact on estimated marginal willingness to pay, while the effect was significant for theadditive scaling of the cost vector. At the end of the paper we discuss the implications of our results on future developments and applications of choice experiments.
Keywords: Attribute levels; choice experiment; complexity; length; power outages; starting point
21 pages, January 19, 2006
Note: Published in Environmental and Resource Economics, 2008, Vol 40, pp. 165-176.
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