Two firms (N = 2) produce two goods at constant marginal cost 0.2. The demand function for the good of firm 1 is equal to: D₁(p1, P2) = 1- P1 + ap2. The demand function for the good of firm 2 is: D₁(p1, P2)= 1+αp1-p2.α is a parameter between 1/2 and one

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