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Updated: Dec 20, 2025

Assessment of Social Interaction Behaviors
Published on: February 25, 2011
Even Bad Social Norms Promote Positive Interactions
Yoshio Kamijo1, Yosuke Kira2, Kohei Nitta3
1School of Political Science and Economics, Waseda University, 1-6-1 Nishi-Waseda, Shinjuku-ku, Tokyo, 169-8050, Japan.
This study reveals that rewarding bad social behavior can unexpectedly increase its prevalence. People may maintain negative norms, anticipating positive social interactions through rewards.
Area of Science:
- Behavioral Economics
- Social Psychology
- Experimental Economics
Background:
- Social norms, crucial for cooperation, are influenced by sanctions.
- Positive social behavior is often encouraged through positive interactions and sanctions.
Purpose of the Study:
- To investigate the interplay between social behavior and sanctions.
- To examine how different sanctioning mechanisms (punishment, reward) affect cooperation in public goods games.
Main Methods:
- Economic laboratory experiments were conducted using a public goods game.
- Participants made contribution decisions and subsequently chose sanctioning strategies (no sanction, punishment, reward, or both).
- A follow-up experiment clarified the concept of societal inefficiency.
Main Results:
- Rewarding participants led to an increase in inefficient social behavior.
- Higher levels of social activity and rewards were positively correlated.
- Even when inefficiency was clearly defined, high contributions persisted with available sanctions.
- Groups maintaining detrimental norms utilized reward options more frequently.
Conclusions:
- The findings suggest that individuals may sustain negative social norms in anticipation of positive social interactions via rewards.
- The study highlights the complex and sometimes counterintuitive effects of reward mechanisms on social behavior and norm maintenance.
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