Recent tests for the convergence hypothesis derive from regressing average growth rates on initial levels: a negative initial level coefficient is interpreted as convergence. These tests turn out to be plagued by Francis Galton's classical fallacy of regression towards the mean. Using a dynamic...

We use a monetary (Dornbusch) model of the exchange rate and introduce speculative dynamics, in which fundamentalists and chartists interact. The resulting non-linearities in the model produce `chaotic' behaviour of the exchange rate. We also analyse the effects of money-stock surprises in such...