Verified Trust, Reciprocity, Altruism and Noise in Trust Games

Working Paper: CEPR ID: DP4758

Authors: Marius Brülhart; Jean-Claude Usunier

Abstract: Behavioural economists have come to recognize that reciprocity, the interaction of trust and trustworthiness, is a distinct and economically relevant component of individual preferences alongside selfishness and altruism. This recognition is principally due to observed decisions in experimental ?trust games?. However, recent research has cast doubt on the explanatory power of trust as a determinant of those decisions, suggesting that altruism may explain much of what ?looks like? trust. Moreover, empirical tests for alternative behavioural determinants can be sensitive to experimental bias due to differences in protocols and framing. Therefore, we propose discriminatory tests for altruism and trust that can be based on within-treatment and within-subject comparisons, and we control for group attributes of experimental subjects. Our results support trust (i.e. expected reciprocation) as the dominant motivation for ?trust like? decisions.

Keywords: altruism; experimental error; reciprocity; trust game

JEL Codes: C91; D63; D64


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
economics students (A10)trust behavior (Z13)
first-mover transfers (F16)second-mover wealth (P12)
first-mover transfers (F16)expected second-mover returns (D84)
expected second-mover returns (D84)first-mover transfers (F16)

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