Suppose we have an economy with N people. There is a public good which is only provided if at least one person gives up c \in (0,1) dollars to pay for it. Consider the following game. Each person simultaneously decides whether or not to contribute c. If at least one person contributes c, each contributors gets 1-c and each non contributors get 1. If no one contributes, everyone gets a payoff of 0. What are the strategy equilibria of this game