A Meta-analysis of Hypothetical Bias in Stated Preference Valuation
Individuals are widely believed to overstate their economic valuation of a good by a factor of two or three. This paper reports the results of a meta-analysis of hypothetical bias in 28 stated preference valuation studies that report monetary willingness-to-pay and used the same mechanism for eliciting both hypothetical and actual values. The papers generated 83 observations with a median ratio of hypothetical to actual value of only 1.35, and the distribution has severe positive skewness. We find that a choice-based elicitation mechanism is important in reducing bias. We provide some evidence that the use of student subjects may be a source of bias, but since this variable is highly correlated with group experimental settings, firm conclusions cannot be drawn. There is some weak evidence that bias increases when public goods are being valued, and that some calibration methods may be effective at reducing bias. However, results are quite sensitive to model specification, which will remain a problem until a comprehensive theory of hypothetical bias is developed. Copyright Springer 2005
If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
Volume (Year): 30 (2005)
Issue (Month): 3 (03)
|Contact details of provider:|| Web page: http://www.springerlink.com/link.asp?id=100263|
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Smith, V. Kerry & Mansfield, Carol, 1996.
"Buying Time: Real and Hypothetical Offers,"
dp-97-09, Resources For the Future.
- John List & Craig Gallet, 2001. "What Experimental Protocol Influence Disparities Between Actual and Hypothetical Stated Values?," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 20(3), pages 241-254, November.
- List, John A. & Shogren, Jason F., 1998.
"Calibration of the difference between actual and hypothetical valuations in a field experiment,"
Journal of Economic Behavior & Organization,
Elsevier, vol. 37(2), pages 193-205, October.
- Jason Shogren & John List, 1998. "Calibration of the difference between actual and hypothetical valuations in a field experiment," Natural Field Experiments 00296, The Field Experiments Website.
- John A. List, 2001.
"Do Explicit Warnings Eliminate the Hypothetical Bias in Elicitation Procedures? Evidence from Field Auctions for Sportscards,"
American Economic Review,
American Economic Association, vol. 91(5), pages 1498-1507, December.
- John List, 2001. "Do explicit warnings eliminate the hypothetical bias in elicitation procedures? Evidence from field auctions for sportscards," Framed Field Experiments 00163, The Field Experiments Website.
- Richard T. Carson & Nicholas E. Flores & Kerry M. Martin & Jennifer L. Wright, 1996.
"Contingent Valuation and Revealed Preference Methodologies: Comparing the Estimates for Quasi-Public Goods,"
University of Wisconsin Press, vol. 72(1), pages 80-99.
- Carson, Richard T. & Flores, Nicholas E. & Martin, Kerry M. & Wright, Jennifer L., 1995. "Contingent Valuation and Revealed Preference Methodologies: Comparing the Estimates for Quasi-Public Goods," 1995 Conference (39th), February 14-16, 1995, Perth, Australia 148793, Australian Agricultural and Resource Economics Society.
- John Loomis & Thomas Brown & Beatrice Lucero & George Peterson, 1996. "Improving Validity Experiments of Contingent Valuation Methods: Results of Efforts to Reduce the Disparity of Hypothetical and Actual Willingness to Pay," Land Economics, University of Wisconsin Press, vol. 72(4), pages 450-461.
- Fox, John A. & Shogren, J. & Hayes, Dermot J. & Kliebenstein, James, 2003.
"Cvm-X: Calibrating Contingent Values with Experimental Auction Markets,"
Staff General Research Papers
11935, Iowa State University, Department of Economics.
- John A. Fox & Jason F. Shogren & Dermot J. Hayes & James B. Kliebenstein, 1998. "CVM-X: Calibrating Contingent Values with Experimental Auction Markets," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 80(3), pages 455-465.
- Fox, John A. & Shogren, Jason F. & Hayes, Dermot J. & Kliebenstein, James, 1998. "Cvm-X: Calibrating Contingent Values with Experimental Auction Markets," Staff General Research Papers 1311, Iowa State University, Department of Economics.
- Brookshire, David S & Coursey, Don L, 1987. "Measuring the Value of a Public Good: An Empirical Comparison of Elicitation Procedures," American Economic Review, American Economic Association, vol. 77(4), pages 554-66, September.
- Cummings, Ronald G & Harrison, Glenn W & Rutstrom, E Elisabet, 1995. "Homegrown Values and Hypothetical Surveys: Is the Dichotomous Choice Approach Incentive-Compatible?," American Economic Review, American Economic Association, vol. 85(1), pages 260-66, March.
- Magnus Johannesson, 1997. "Some further experimental results on hypothetical versus real willingness to pay," Applied Economics Letters, Taylor & Francis Journals, vol. 4(8), pages 535-536.
- Irwin, Julie R, et al, 1993. " Preference Reversals and the Measurement of Environmental Values," Journal of Risk and Uncertainty, Springer, vol. 6(1), pages 5-18, January.
- Champ, Patricia A. & Bishop, Richard C. & Brown, Thomas C. & McCollum, Daniel W., 1997. "Using Donation Mechanisms to Value Nonuse Benefits from Public Goods," Journal of Environmental Economics and Management, Elsevier, vol. 33(2), pages 151-162, June.
- John List, 2003.
"Using random nth price auctions to value non-market goods and services,"
Framed Field Experiments
00173, The Field Experiments Website.
- List, John A, 2003. "Using Random nth Price Auctions to Value Non-market Goods and Services," Journal of Regulatory Economics, Springer, vol. 23(2), pages 193-205, March.
- Helen R. Neill & Ronald G. Cummings & Philip T. Ganderton & Glenn W. Harrison & Thomas McGuckin, 1994. "Hypothetical Surveys and Real Economic Commitments," Land Economics, University of Wisconsin Press, vol. 70(2), pages 145-154.
- Laura O. Taylor & Ronald G. Cummings, 1999. "Unbiased Value Estimates for Environmental Goods: A Cheap Talk Design for the Contingent Valuation Method," American Economic Review, American Economic Association, vol. 89(3), pages 649-665, June.
- Vivien Foster & Ian J. Bateman & David Harley, 1997. "Real And Hypothetical Willingness To Pay For Environmental Preservation: A Non-Experimental Comparison," Journal of Agricultural Economics, Wiley Blackwell, vol. 48(1-3), pages 123-137.
- Gregory Poe & Jeremy Clark & Daniel Rondeau & William Schulze, 2002. "Provision Point Mechanisms and Field Validity Tests of Contingent Valuation," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 23(1), pages 105-131, September.
- Peter Bohm, 1972. "Estimating the demand for public goods: An experiment," Framed Field Experiments 00126, The Field Experiments Website.
- Bohm, Peter, 1972. "Estimating demand for public goods: An experiment," European Economic Review, Elsevier, vol. 3(2), pages 111-130.
When requesting a correction, please mention this item's handle: RePEc:kap:enreec:v:30:y:2005:i:3:p:313-325. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Sonal Shukla)or (Christopher F. Baum)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.