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A System for Tracking the Dynamics of Social Preference Behavior in Small Rodents
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Distributional Preferences, Reciprocity-Like Behavior, and Efficiency in Bilateral Exchange.

Daniel J Benjamin1

  • 1Department of Economics, Cornell University, 480 Ursis Hall ( db468@cornell.edu ).

American Economic Journal. Microeconomics
|February 10, 2015
PubMed
Summary
This summary is machine-generated.

Distributional preferences, like altruism, can lead to efficient trade. Specific conditions in how players value fairness and material payoffs drive reciprocity and Pareto efficient outcomes in exchange games.

Keywords:
altruismdistributional preferencesfairnessgift exchangerotten kid theorem

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Area of Science:

  • Behavioral Economics
  • Game Theory
  • Microeconomics

Background:

  • Traditional economic models often assume self-interest.
  • Distributional preferences (altruism, fairness) are increasingly recognized as important drivers of economic behavior.
  • Understanding how these preferences impact trade efficiency is crucial.

Purpose of the Study:

  • To theoretically analyze the conditions under which distributional preferences generate efficient trade.
  • To identify key properties of player preferences that foster reciprocity and efficiency in bilateral exchange.

Main Methods:

  • Theoretical analysis of a sequential bilateral exchange game.
  • Modeling player preferences based on own and other's material payoffs.
  • Identifying conditions on second-mover preferences (kinked indifference curves, normal goods).

Main Results:

  • Two key properties of second-mover preferences can generate efficient trade: indifference curves kinked around fair payoff distributions, and material payoffs acting as normal goods.
  • Either of these properties can induce reciprocity-like behavior.
  • Pareto efficient outcomes can be achieved under these conditions.

Conclusions:

  • Distributional preferences, specifically fairness concerns and viewing payoffs as normal goods, are critical for achieving efficient trade.
  • The structure of preferences, particularly for the second mover, significantly influences trade outcomes.
  • This research provides theoretical underpinnings for reciprocity in economic interactions.