The ABC mechanism: an incentive compatible payoff mechanism for elicitation of outcome and probability transformations

Yi Li ()
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Yi Li: Slippery Rock University

Experimental Economics, 2021, vol. 24, issue 3, No 11, 1019-1046

Abstract: Abstract When it comes to experiments with multiple-round decisions under risk, the current payoff mechanisms are incentive compatible with either outcome weighting theories or probability weighting theories, but not both. In this paper, I introduce a new payoff mechanism, the Accumulative Best Choice (“ABC”) mechanism that is incentive compatible for all rational risk preferences. I also identify three necessary and sufficient conditions for a payoff mechanism to be incentive compatible for all models of decision under risk with complete and transitive preferences. I show that ABC is the unique incentive compatible mechanism for rational risk preferences in a multiple-task setting. In addition, I test empirical validity of the ABC mechanism in the lab. The results from both a choice pattern experiment and a preference (structural) estimation experiment show that individual choices under the ABC mechanism are statistically not different from those observed with the one-round task experimental design. The ABC mechanism supports unbiased elicitation of both outcome and probability transformations as well as testing alternative decision models that do or do not include the independence axiom.

Keywords: Experimental design; Payoff mechanism; Incentive compatibility; Decision theory under risk (search for similar items in EconPapers)
JEL-codes: C90 D80 D81 (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (1)

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DOI: 10.1007/s10683-020-09688-2

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