Preplay contracting in the Prisoners' dilemma

Area of Science:

• Behavioral Economics
• Game Theory
• Experimental Economics

Background:

• The standard Prisoners' Dilemma often results in suboptimal outcomes due to self-interest.
• Mechanisms to incentivize cooperation are crucial for achieving efficient social outcomes.
• Previous research highlights the tension between individual incentives and collective benefits.

Purpose of the Study:

• To investigate the effectiveness of a payment mechanism in achieving Pareto efficiency in a modified Prisoners' Dilemma.
• To experimentally test whether human subjects can reach the theoretically efficient outcome.
• To understand how individual preferences interact with economic incentives.

Main Methods:

• Utilized a two-stage modified Prisoners' Dilemma game structure.
• Conducted controlled experiments with human subjects making strategic decisions.
• Analyzed subject behavior to assess the achievement of the subgame perfect equilibrium.

Main Results:

• The implemented payment mechanism demonstrated encouraging support for achieving cooperation.
• Subjects showed a tendency towards cooperative outcomes, aligning with theoretical predictions.
• Evidence suggests that individual preferences for cooperation and equity significantly interact with the incentive structure.

Conclusions:

• The modified game mechanism shows promise in facilitating efficient outcomes in social dilemmas.
• While incentives are powerful, individual fairness considerations play a notable role in decision-making.
• Further research is needed to fully understand the interplay between incentives and social preferences.