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Opting-In: Participation Biases in the Lab

  • Slonim, Robert


    (University of Sydney)

  • Wang, Carmen


    (Harvard Business School)

  • Garbarino, Ellen


    (University of Sydney)

  • Merrett, Danielle


    (University of Sydney)

Assuming individuals rationally decide whether to participate or not to participate in lab experiments, we hypothesize several non-representative biases in the characteristics of lab participants. We test the hypotheses by first collecting survey and experimental data on a typical recruitment population and then inviting them to participate in a lab experiment. The results indicate that lab participants are not representative of the target population on almost all the hypothesized characteristics, including having lower income, working fewer hours, volunteering more often, and exhibiting behaviors correlated with interest in experiments and economics. We discuss the implications and various methods for addressing non-representative biases.

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Paper provided by Institute for the Study of Labor (IZA) in its series IZA Discussion Papers with number 6865.

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Length: 47 pages
Date of creation: Sep 2012
Date of revision:
Publication status: published in: Journal of Economic Behavior and Organization, 2013, 90, 43-70
Handle: RePEc:iza:izadps:dp6865
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  1. Bellemare, Charles & Kroger, Sabine, 2007. "On representative social capital," European Economic Review, Elsevier, vol. 51(1), pages 183-202, January.
  2. Eckel, Catherine C. & Grossman, Philip J., 1996. "Altruism in Anonymous Dictator Games," Games and Economic Behavior, Elsevier, vol. 16(2), pages 181-191, October.
  3. E. Fehr & John A. List, . "The Hidden Costs and Returns of Incentives - Trust and Trustworthiness among CEOs," IEW - Working Papers 134, Institute for Empirical Research in Economics - University of Zurich.
  4. Samuel Bowles & Sandra Polania-Reyes, 2012. "Economic Incentives and Social Preferences: Substitutes or Complements?," Journal of Economic Literature, American Economic Association, vol. 50(2), pages 368-425, June.
  5. Steffen Andersen & Glenn W. Harrison & Morten Igel Lau & E. Elisabet Rutström, 2009. "Preference Heterogeneity in Experiments: Comparing the Field and Laboratory," Post-Print hal-00736951, HAL.
  6. Nagel, Rosemarie, 1995. "Unraveling in Guessing Games: An Experimental Study," American Economic Review, American Economic Association, vol. 85(5), pages 1313-26, December.
  7. repec:kap:expeco:v:11:y:2008:i:2:p:134-153 is not listed on IDEAS
  8. Omar Al-Ubaydli & John A. List, 2012. "On the Generalizability of Experimental Results in Economics," NBER Working Papers 17957, National Bureau of Economic Research, Inc.
  9. Grether, David M. & Plott, Charles R., . "Economic Theory of Choice and the Preference Reversal Phenomenon," Working Papers 152, California Institute of Technology, Division of the Humanities and Social Sciences.
  10. Kahneman, Daniel & Tversky, Amos, 1979. "Prospect Theory: An Analysis of Decision under Risk," Econometrica, Econometric Society, vol. 47(2), pages 263-91, March.
  11. Bellemare, Charles & Kröger, Sabine & van Soest, Arthur, 2011. "Preferences, intentions, and expectation violations: A large-scale experiment with a representative subject pool," Journal of Economic Behavior & Organization, Elsevier, vol. 78(3), pages 349-365, May.
  12. John A. List, 2004. "Young, Selfish and Male: Field evidence of social preferences," Economic Journal, Royal Economic Society, vol. 114(492), pages 121-149, 01.
  13. Binswanger, Hans P, 1981. "Attitudes toward Risk: Theoretical Implications of an Experiment in Rural India," Economic Journal, Royal Economic Society, vol. 91(364), pages 867-90, December.
  14. Bellemare, C. & Kroger, S., 2003. "On Representative Trust," Discussion Paper 2003-47, Tilburg University, Center for Economic Research.
  15. Cleave, Blair L. & Nikiforakis, Nikos & Slonim, Robert, 2010. "Is There Selection Bias in Laboratory Experiments?," Working Papers 2010-01, University of Sydney, School of Economics.
  16. Heckman, James J, 1979. "Sample Selection Bias as a Specification Error," Econometrica, Econometric Society, vol. 47(1), pages 153-61, January.
  17. Glenn Harrison & John List, 2004. "Field experiments," Artefactual Field Experiments 00058, The Field Experiments Website.
  18. Carpenter, Jeffrey P. & Burks, Stephen V. & Verhoogen, Eric, 2004. "Comparing Students to Workers: The Effects of Social Framing on Behavior in Distribution Games," IZA Discussion Papers 1341, Institute for the Study of Labor (IZA).
  19. Vivi Alatas & Lisa Cameron & Ananish Chaudhuri & Nisvan Erkal & Lata Gangadharan, 2006. "Subject Pool Effects in a Corruption Experiment: A Comparison of Indonesian Public Servants and Indonesian Students," Department of Economics - Working Papers Series 975, The University of Melbourne.
  20. Falk, Armin & Meier, Stephan & Zehnder, Christian, 2010. "Did We Overestimate the Role of Social Preferences? The Case of Self-Selected Student Samples," CEPR Discussion Papers 8019, C.E.P.R. Discussion Papers.
  21. Charles A. Holt & Susan K. Laury, 2002. "Risk Aversion and Incentive Effects," American Economic Review, American Economic Association, vol. 92(5), pages 1644-1655, December.
  22. Michèle Belot & Raymond Duch & Luis Miller, 2010. "Who should be called to the lab? A comprehensive comparison of students and non-students in classic experimental games," Discussion Papers 2010001, University of Oxford, Nuffield College.
  23. Ben Greiner, 2004. "The Online Recruitment System ORSEE 2.0 - A Guide for the Organization of Experiments in Economics," Working Paper Series in Economics 10, University of Cologne, Department of Economics.
  24. Carsten Schmidt & Matthias Sutter & Werner Guth, 2002. "Bargaining outside the lab - a newspaper experiment of a three person-ultimatum game," Artefactual Field Experiments 00050, The Field Experiments Website.
  25. Hans P. Binswanger, 1980. "Attitudes Toward Risk: Experimental Measurement in Rural India," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 62(3), pages 395-407.
  26. Kyriaki Remoundou & Andreas Drichoutis & Phoebe Koundouri, . "Warm glow in charitable auctions: Are the WEIRDos driving the results?," DEOS Working Papers 1026, Athens University of Economics and Business.
  27. Jon Anderson & Stephen V. Burks & Jeffrey Carpenter & Lorenz Goette & Karsten Maurer & Daniele Nosenzo & Ruth Potter & Kim Rocha & Aldo Rustichini, 2010. "Self Selection Does Not Increase Other-Regarding Preferences among Adult Laboratory Subjects, but Student Subjects May Be More Self-Regarding than Adults," Discussion Papers 2010-22, The Centre for Decision Research and Experimental Economics, School of Economics, University of Nottingham.
  28. John A. List, 2006. "The Behavioralist Meets the Market: Measuring Social Preferences and Reputation Effects in Actual Transactions," Journal of Political Economy, University of Chicago Press, vol. 114(1), pages 1-37, February.
  29. Matthias Benz & Stephan Meier, 2008. "Do people behave in experiments as in the field?—evidence from donations," Experimental Economics, Springer;Economic Science Association, vol. 11(3), pages 268-281, September.
  30. Juan Cardenas, 2011. "Social Norms and Behavior in the Local Commons as Seen Through the Lens of Field Experiments," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 48(3), pages 451-485, March.
  31. Steven D. Levitt & John A. List, 2007. "What Do Laboratory Experiments Measuring Social Preferences Reveal About the Real World?," Journal of Economic Perspectives, American Economic Association, vol. 21(2), pages 153-174, Spring.
  32. Bellemare, C. & Kroger, S. & van Soest, A.H.O., 2008. "Measuring inequity aversion in a heterogeneous population using experimental decisions and subjective probabilities," Other publications TiSEM f17bda32-98f9-4580-ab3f-6, Tilburg University, School of Economics and Management.
  33. R. Lynn Hannan & John H. Kagel & Donald V. Moser, 2002. "Partial Gift Exchange in an Experimental Labor Market: Impact of Subject Population Differences, Productivity Differences, and Effort Requests on Behavior," Journal of Labor Economics, University of Chicago Press, vol. 20(4), pages 923-951, October.
  34. James Andreoni & Charles Sprenger, 2010. "Estimating Time Preferences from Convex Budgets," NBER Working Papers 16347, National Bureau of Economic Research, Inc.
  35. Samuel Bowles & Sandra Polania-Reyes, 2011. "Economic incentives and social preferences: substitutes or complements?," Department of Economics University of Siena 617, Department of Economics, University of Siena.
  36. Jeffrey Carpenter & Cristina Connolly & Caitlin Myers, 2008. "Altruistic behavior in a representative dictator experiment," Experimental Economics, Springer;Economic Science Association, vol. 11(3), pages 282-298, September.
  37. Axel Ockenfels & Gary E. Bolton, 2000. "ERC: A Theory of Equity, Reciprocity, and Competition," American Economic Review, American Economic Association, vol. 90(1), pages 166-193, March.
  38. Ellen Garbarino & Robert Slonim & Justin Sydnor, 2011. "Digit ratios (2D:4D) as predictors of risky decision making for both sexes," Journal of Risk and Uncertainty, Springer, vol. 42(1), pages 1-26, February.
  39. Filippos Exadaktylos & Antonio M. Espin & Pablo Branas-Garza, 2012. "Experimental Subjects are Not Different," Working Papers 12-11, Chapman University, Economic Science Institute.
  40. Tversky, Amos & Kahneman, Daniel, 1992. "Advances in Prospect Theory: Cumulative Representation of Uncertainty," Journal of Risk and Uncertainty, Springer, vol. 5(4), pages 297-323, October.
  41. Steven D. Levitt & John A. List, 2007. "Viewpoint: On the generalizability of lab behaviour to the field," Canadian Journal of Economics, Canadian Economics Association, vol. 40(2), pages 347-370, May.
  42. Garbarino, Ellen & Slonim, Robert, 2009. "The robustness of trust and reciprocity across a heterogeneous U.S. population," Journal of Economic Behavior & Organization, Elsevier, vol. 69(3), pages 226-240, March.
  43. Stahl, Dale O., 1996. "Boundedly Rational Rule Learning in a Guessing Game," Games and Economic Behavior, Elsevier, vol. 16(2), pages 303-330, October.
  44. Cameron, Lisa & Chaudhuri, Ananish & Erkal, Nisvan & Gangadharan, Lata, 2009. "Propensities to engage in and punish corrupt behavior: Experimental evidence from Australia, India, Indonesia and Singapore," Journal of Public Economics, Elsevier, vol. 93(7-8), pages 843-851, August.
  45. R. H. Strotz, 1955. "Myopia and Inconsistency in Dynamic Utility Maximization," Review of Economic Studies, Oxford University Press, vol. 23(3), pages 165-180.
  46. Machina, Mark J, 1987. "Choice under Uncertainty: Problems Solved and Unsolved," Journal of Economic Perspectives, American Economic Association, vol. 1(1), pages 121-54, Summer.
  47. Catherine C. Eckel & Philip J. Grossman, 2008. "Forecasting Risk Attitudes: An Experimental Study Using Actual and Forecast Gamble Choices," Monash Economics Working Papers archive-01, Monash University, Department of Economics.
  48. Burks, Stephen & Carpenter, Jeffrey & Goette, Lorenz, 2009. "Performance pay and worker cooperation: Evidence from an artefactual field experiment," Journal of Economic Behavior & Organization, Elsevier, vol. 70(3), pages 458-469, June.
  49. Catherine Eckel & Philip Grossman, 2000. "Volunteers and Pseudo-Volunteers: The Effect of Recruitment Method in Dictator Experiments," Experimental Economics, Springer;Economic Science Association, vol. 3(2), pages 107-120, October.
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