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Question 1
Consider the following contribution to public good as a prisoner's dilemma with the payoff matrix:

 Person B Do not contribute Contribute Person A Do not contribute A pays $0, receives$0, net gain $0 B pays$0, receives $0, net gain$0 A pays $0, receives$21, net gain $21 B pays$28, receives $21, net gain$-7 Contribute A pays $28, receives$21, net gain $-7 B pays$0, receives $21, net gain$21 A pays $28, receives$42, net gain $14 B pays$28, receives $42, net gain$14

What is the dominant strategy for player A?

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Question 2

What is the dominant strategy for player B?

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Question 3

What is the Nash Equilibrium in this situation?

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