Altruism, reciprocity, and probability: Examining relations through a discounting framework.

Area of Science:

• Behavioral Economics
• Social Psychology
• Decision Science

Background:

• Altruism and cooperation are fundamental to social interactions.
• Social discounting models how reward value decreases with social distance.
• Reciprocal discounting has been proposed to measure perceived altruism from others.

Purpose of the Study:

• To investigate the relationship between social, reciprocal, and probability discounting.
• To examine the connection between standard social distance and reciprocal social distance.
• To extend research on reciprocal discounting by incorporating probability discounting.

Main Methods:

• 129 participants completed tasks assessing social, reciprocal, and probability discounting.
• Standard social distance and reciprocal social distance were measured.
• Discount rates were analyzed for correlations and fit to hyperbolic functions.

Main Results:

• Reciprocal discount rates fit a hyperbolic form, replicating previous findings.
• Strong correlations were observed between social and reciprocal discount rates.
• Moderate correlations were found between social and probability discount rates, and between reciprocal and probability discount rates.
• Reward values showed greater correspondence at extreme social distances (Person 1 and Person 100) in reciprocal discounting.

Conclusions:

• Reciprocation and probability significantly influence altruistic choices.
• The study provides evidence for the interplay between social distance, probability, and reciprocal altruism.
• Findings lay the groundwork for future research on the complexities of social distance in decision-making.