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Migration, technology diffusion and convergence in a two-country AK Growth Model

Ikhenaode, Bright Isaac and Parello, Carmelo Pierpaolo (2022): Migration, technology diffusion and convergence in a two-country AK Growth Model.

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This paper proposes a two-country AK model of growth with cross-country knowledge diffusion and endogenous migration to study the relationship between migration, income inequality and economic growth. In contrast with mainstream AK literature, we show that introducing knowledge diffusion from frontier to non-frontier countries makes AK models predict conditional convergence, with migration playing an important role in speeding up the catching-up process of non-frontier countries. When testing the robustness of the policy implications of the AK literature, we find that subsidizing capital accumulation in frontier countries stimulates migration and worldwide growth, but also that it increases cross-country inequalities in terms of both income and technology. On the contrary, subsidizing capital accumulation in non-frontier countries reduces migration and mitigates inequalities worldwide, but has no effects on the long-run pace of economic growth of the two countries.

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