We develop a simple model of the exchange rate in which agents optimize their portfolio and use different forecasting rules. They check the profitability of these rules ex post and select the more profitable one. This model produces two kinds of equilibria, a fundamental and a bubble one. In a...

We present a simple behavioral model with chartists and fundamentalists and analyze their trading behavior in a floating regime and in a target zone regime. Regarding the floating regime the model replicates the well-known stylized facts like excessive volatility, fat tails, volatility...

We develop a simple model of the exchange rate in which agents optimize their portfolio and use different forecasting rules. They check the profitability of these rules ex post and select the more profitable one. This model produces two kinds of equilibria, a fundamental and a bubble one. In a...

The rational expectations efficient market model of the exchange rate has failed empirically. In this paper we develop a model of the exchange rate in which agents use simple forecasting rules. Based on an ex post evaluation of the relative profitability of these rules they decide whether to...

We develop a simple model of the exchange rate in which agents optimize their portfolio and use different forecasting rules. They check the profitability of these rules ex post and select the more profitable one. This model produces two kinds of equilibria, a fundamental and a bubble one. In a...

This paper analyses several issues. First, it describes the main features of ERM II and compares them with those of ERM I as it evolved during the 1980s and 1990s. Second, it analyses whether, and under what conditions, ERM II will be more successful than its predecessor in avoiding disruptive...

This paper analyses several procedures for fixing conversion rates at the start of EMU. One consists of announcing a fixed conversion rate; a second (proposed by Lalmfalussy) would announce that the conversion rate will be an average of past market exchange rates; and a third involves announcing...

This paper analyses the constraints on the choice of the conversion rates resulting from the fact that the external value of the Ecu cannot be changed at the start of the third stage of EMU and that one Ecu must be converted into one Euro. These constraints force the authorities to accept the...

This paper undertakes an empirical analysis of the existence of psychological barriers in the dollar/DM and the dollar/yen exchange markets. Psychological barriers occur when agents attach some special importance to the last trailing digits of the price of an asset or a currency. Our empirical...

We develop a simple model of the exchange rate in which agents optimize their portfolio and use different forecasting rules. They check the profitability of these rules ex post and select the more profitable one. This model produces two kinds of equilibria, a fundamental and a bubble one. In a...