The trade off between time and money: Is there a difference between real and hypothetical choices?
This paper reports the results from one experiment and one quasi-experiment used to investigate the potential problem of “hypothetical bias” in surveys involving an individual’s valuation of time. The experiment compares hypothetical and real choices regarding an offer to participate in a survey in exchange for money. The quasi-experiment compares hypothetical and real choices regarding two bus journeys, one fast and expensive and the other slow and cheap. In both of these experiments, real choices differ significantly from hypothetical ones. The paper estimates parametric distributions of the value of time by applying the general method of moments (GMM) estimator. Since the samples are relatively small a parametric bootstrap is used to obtain asymptotic refinement of statistical tests. The results in the experiment as well as in the quasi-experiment suggest a value of time which is higher when the choice is for real than when the choice is hypothetical. Assuming that the value of time distribution is exponential, real choices produce a mean value of time twice as large as the corresponding hypothetical value.
|Date of creation:||12 Mar 2007|
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- Truong, Truong P & Hensher, David A, 1985. "Measurement of Travel Time Values and Opportunity Cost from a Discrete-Choice Model," Economic Journal, Royal Economic Society, vol. 95(378), pages 438-51, June.
- Bohm, Peter, 1972. "Estimating demand for public goods: An experiment," European Economic Review, Elsevier, vol. 3(2), pages 111-130.
- Glenn Harrison, 2006. "Experimental Evidence on Alternative Environmental Valuation Methods," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 34(1), pages 125-162, 05.
- Cameron,A. Colin & Trivedi,Pravin K., 2005. "Microeconometrics," Cambridge Books, Cambridge University Press, number 9780521848053, October.
- Altonji, Joseph G & Segal, Lewis M, 1996.
"Small-Sample Bias in GMM Estimation of Covariance Structures,"
Journal of Business & Economic Statistics,
American Statistical Association, vol. 14(3), pages 353-66, July.
- Joseph G. Altonji & Lewis M. Segal, 1994. "Small Sample Bias in GMM Estimation of Covariance Structures," NBER Technical Working Papers 0156, National Bureau of Economic Research, Inc.
- Joseph G. Altonji & Lewis M. Segal, 1994. "Small sample bias in GMM estimation of covariance structures," Working Paper Series, Macroeconomic Issues 94-8, Federal Reserve Bank of Chicago.
- Andrews, Donald W K, 2001.
"Testing When a Parameter Is on the Boundary of the Maintained Hypothesis,"
Econometric Society, vol. 69(3), pages 683-734, May.
- Donald W.K. Andrews, 1999. "Testing When a Parameter Is on the Boundary of the Maintained Hypothesis," Cowles Foundation Discussion Papers 1229, Cowles Foundation for Research in Economics, Yale University.
- Smith, V. Kerry & Mansfield, Carol, 1996.
"Buying Time: Real and Hypothetical Offers,"
96-04, Duke University, Department of Economics.
- 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.
- Cummings, Ronald G, et al, 1997. "Are Hypothetical Referenda Incentive Compatible?," Journal of Political Economy, University of Chicago Press, vol. 105(3), pages 609-21, June.
- Hall, Peter & Horowitz, Joel L, 1996. "Bootstrap Critical Values for Tests Based on Generalized-Method-of-Moments Estimators," Econometrica, Econometric Society, vol. 64(4), pages 891-916, July.
- Boxall, Peter C. & Adamowicz, Wiktor L. & Swait, Joffre & Williams, Michael & Louviere, Jordan, 1996. "A comparison of stated preference methods for environmental valuation," Ecological Economics, Elsevier, vol. 18(3), pages 243-253, September.
- Horowitz, Joel L., 2001. "The Bootstrap," Handbook of Econometrics, in: J.J. Heckman & E.E. Leamer (ed.), Handbook of Econometrics, edition 1, volume 5, chapter 52, pages 3159-3228 Elsevier.
- 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.
- 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.
- Louviere,Jordan J. & Hensher,David A. & Swait,Joffre D., 2000. "Stated Choice Methods," Cambridge Books, Cambridge University Press, number 9780521788304, October.
- 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.
- Peter Bohm, 1972. "Estimating the demand for public goods: An experiment," Framed Field Experiments 00126, The Field Experiments Website.
- 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.
- Hansen, Lars Peter, 1982. "Large Sample Properties of Generalized Method of Moments Estimators," Econometrica, Econometric Society, vol. 50(4), pages 1029-54, July.
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