This paper provides a selective overview of nonlinear exchange rate models recently proposed in the literature and assesses their contribution to understanding exchange rate behavior. Two key questions are examined. The first question is whether nonlinear autoregressive models of real exchange...

The paper investigates the sources of growth in the Democratic Republic of the Congo since 1960 and evaluates the relative importance of total factor productivity growth and factor accumulation, using a cointegration method and a growth accounting framework. The main findings confirm that poor...