International audienceThis paper applies quantile regression techniques to investigate how the impact of trade openness on the growth rate of per capita income varies with the conditional distribution of growth. Using formal robustness analyses, we first identify robust variables affecting economic growth (investment, government balance, terms of trade, inflation, and population growth) which we then use as controls in the quantile regression estimations. Our findings suggest a heterogeneous trade-growth nexus: for both the short and the long run, the effect of openness on growth is higher in countries with low growth rates compared to those with high growth rates

This paper proposes an empirical study of the links between poor governance, weak institutions and the growth of per capita income in the countries that belong to the Economic Community of West African States (ECOWAS). We estimate a conditional beta-convergence model using panel data. We find that variables such as the rule of law, property rights, the regulatory burden, political violence, and government ineffectiveness hinder growth in these countries. An interesting question is then the following: what can the countries do to improve their situations? To answer this question, we give several examples (Ghana, Nigeria and the NEPAD) of measures that are undertaken in order to strengthen the institutions and improve governance.

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International audienceThe asymmetric and persistent adjustment of the European real exchange rates is investigated using the framework of non-linear cointegration. The episodes of slow mean-reversion dynamics over the period from 1979 to 1999 are explained. A test of unit root against STAR cointegration is proposed and some complete estimations and stochastic simulations of ESTAR models are presented. The presence of effective non-linear adjustment during the moving of the currencies to their long-run fundamental equilibrium exchange rate value is discussed