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This paper examines the interaction betweenmigration policies of the host and source countries in the context of a model of guest-worker migration. For the host, the objective is to provide low-cost labor for its employers while avoiding illegal immigration. It optimizes over these objectives by setting the time limit of a guest-worker permit. The source country seeks remittance flows and return migration by offering fiscal benefits and other advantages to returnees. Within this framework, we solve for the Nash equilibrium values of the migration policy instruments and compare them with the ones that emerge in a cooperative setting