The Evolution of Norms1
Jonathan Bendor
Stanford University
Piotr Swistak
University of Maryland, College Park
Social norms that induce us to reward or punish people not for what
they did to us but for what they did to other members of ones
group have lon

Solutions to Problem Set 2
The following note was very important for the solutions:
In all problems below a rational preference relation is understood as one that satisfies the axioms of von
Neumann and Morgensterns utility theory. When solving these prob

Problem Set 3 Solutions
Problem 1 (Dixit and Skeath p.117) (3p)
An old lady is looking for help crossing the street. Only one person is needed to help her; more are
okay but no better than one. You and I are the two people in the vicinity who can help; we

Solutions to Problem Set 1.
Problem 1 (20p)
Figure 1
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Figure 10
Figures 1-10 above depict preference relations of ten different people on a set of three or four
alternatives. (For each

Problem Set 4: Due in class October 18. Test 2 on homeworks 3 and 4 will be given at 2:00pm on
October 25. Solutions will be posted right after class, hence no late submissions will be accepted.
Group solutions are welcomed and encouraged.
Problem 1 (Dixi

Problem Set 2: Due in class on Tuesday September 20. Solutions to this homework will be
posted right after class, hence no late submissions will be accepted. Group solutions are
welcomed and encouraged. Test 1 on the content of homeworks 1 and 2 will be g