期刊
EVOLUTION AND HUMAN BEHAVIOR
卷 42, 期 3, 页码 223-229出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.evolhumbehav.2020.10.003
关键词
Evolution; Cooperation; Decision making; Experiment; Heuristics; Social behavior
资金
- Research Foundation-Flanders (FWO) [G093618N]
The study found that when individuals are uncertain about the outcomes of cooperation in social interactions, they tend to use simple cooperation strategies, leading to a significant increase in cooperative behavior, even in situations where cooperation may not be beneficial.
When humans engage in social interactions, they are often uncertain about what the possible outcomes are. Because of this, highly sophisticated cooperation strategies may not be very effective. Indeed, some models instead predict the emergence of 'social heuristics': simple cooperation strategies that perform well across a range of different situations. Here, we put these predictions to the test in a large-scale interactive decision making experiment. We confronted participants (mostly Belgian university students) with a broad range of cooperative interactions, systematically varying the uncertainty participants had about the consequences of cooperating. As expected, we find that uncertainty about the payoff consequences of cooperation causes individuals to use social heuristics. Additionally, these heuristics directly cause a marked increase in cooperation compared to the treatment without uncertainty, even in situations where cooperation can never be beneficial. These findings provide a new explanation for why human social behavior often violates the standard predictions of economic and evolutionary theory.
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