Internet Experiment on Punishment Behavior

1
Internet Experiment on Punishment Behavior

• Toshio Yamagishi
• Karen S. Cook
• Shigeru Terai
• Coye V. Cheshire

2
Purpose

• Examining whether people cooperate more with
  in-group members than with out-group members.
• Examining whether people overlook more in-group
  members than out-group members to punish
  non-cooperative behavior.

3
Task

• 4 Japanese and 4 Americans participants.
• Each participants choose 1 person from 7 person
  to give his/her money to, and decide
  how much money to give.
• Each participants choose another person to
  overlook his/her giving behavior, and decide
  how much money to pay for punishing the
  overlooked person.

4
Results

• American participants did not statistically
  significantly chose more in-group members than
  out-group ones to give money to, and chose more
  in-group members than out-group ones to overlook
  his/her giving behavior.
• Japanese participants chose more out-group
  members than in-group members to give money to,
  and chose more in-group members than out-group
  ones to overlook.

5
People punish non-cooperators
6
Conclusion

• General conclusion
• People punish in-group non-cooperators.
• My conclusion
• In order to make it in international study, it
  is the MOST important to establish good
  partnership among experimenters.