altruistic punishment in humans- E.Fehr, S.Gachter

Question 1

when does cooperation flourish?

Answer 1

if punishment is possible

Question 2

what is direct reciprocity?

Answer 2

selfish incentives for cooperation in long term interactions

Question 3

when may cooperation in a large group emerge?

Answer 3

when cooperators can build up a reputation

Question 4

what is solution?

Answer 4

those who free ride on cooperation of others

Question 5

in 240 students test;

a) how much did each person receive?
b) for every MU invested what did everyone get?
c) if everyone kept their MU what was earned?
d) if everyone invested what was earned?
e) what were the costs to punishing?

Answer 5

a) 20 MU
b) 0.4 MU
c) 20 MU
d) 32 MU
e) to punished: 3MU, to punisher: 1MU

Question 6

who can punishment benefit?

Answer 6

future group members of punished subject

Question 7

when is punishment altruistic?

Answer 7

in the presence of altruistic punishers

Question 8

what % punished:

• at least once
• over 5 times
• over 10

Answer 8

• 84%
• 34%
• 9%

Question 9

what % of punishment was on defectors?

Answer 9

74%

Question 10

when was the income highest?

Answer 10

when investment was close to the average investment of others

Question 11

when did cooperation and average investment increase over time?
when decrease?

Answer 11

in the punishment condition

in non punishment

Question 12

in the final punishment period what % gave their whole endowment?

Answer 12

39%

Question 13

in the final no punishment period what % gave nothing?

Answer 13

59%

Question 14

how is the punishment opportunity altruistic?

Answer 14

there is material benefit for future interactions of the punished member but not the punisher
it induces non cooperators to increase their investments

Question 15

what may free riding/low contribution cause?

Answer 15

-ve emotions and anger which may trigger the willingness to punish the free riders