DP2757 | Price Stability as a Nash Equilibrium in Monetary Open-Economy Models

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A two-country dynamic general-equilibrium model with imperfect competition and price stickiness is considered. This work shows the conditions under which price stability can implement the flexible-price allocation as a Nash equilibrium. This is possible if and only if both countries maintain a certain positive degree of monopolistic competition. In such equilibrium, the monetary policymakers have no incentive to surprise price setters ex post.