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Aging, international capital flows and long run convergence

Abstract

This paper analyses how the economic, demographic and institutional differences between two regions -one developed and called the North, the other emerging and called the South- drive the international capital flows and explain the world economic equilibrium. To this end, we develop a simple two-period OLG model. We compare closed-economy and open-economy equilibria. We consider that openness facilitates convergence of South’s characteristics towards North’s. We examine successively the consequences of a technological catching-up, a demographic transitionand an institutional convergence of pension schemes. We determine the analytical solution of the dynamics of the world interest rate and deduce the evolution of the current accounts. These analytical results are completed by numerical simulations. They show that the technological catching-up alone leads to a welfare loss for the North in reason of capital flows towards the South. If we add to this Örst change a demographic transition, the capital demand is reduced in the South whereas its saving increases in reason of a higher life expectancy. These two effects contribute to reduce the capital flows from the North to the South. Finally, an institutional convergence of the two pension schemes reduces the South’s saving rate which increases the capital flow from the North to the South.
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Dates and versions

hal-03475630 , version 1 (11-12-2021)

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Frédéric Gannon, Gilles Le Garrec, Vincent Touzé. Aging, international capital flows and long run convergence. 2016. ⟨hal-03475630⟩
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