This paper provides real-time evidence on the frequency, size, duration and economic significance of arbitrage opportunities in the foreign exchange market. We investigate deviations from the covered interest rate parity (CIP) condition using a unique data set for three major capital and foreign...

The stability of the EMS depends crucially on the realignment expectations of market participants. In this paper we discuss how to measure such expectations and how to relate them to economic fundamentals, central bank reputation, and the institutional arrangements of the EMS. We find the...

This paper re-examines the standard ‘unbiasedness’ hypothesis in foreign exchange markets, according to which the forward premium should be an unbiased predictor of the future change of the spot exchange rate. If traders are heterogeneous, they may consist of ‘fundamentalists’ who...

To check hyperinflation, Argentina pegged the peso at one US dollar in 1991. This stopped inflation in its tracks: but, with the rise of the dollar against the Euro and the substantial devaluation of the Brazilian real, the peso became increasingly over-valued leading to a significant...

Using a portfolio balance model of exchange rate determination, this paper develops a theoretical explanation of why central banks do not make precise announcements of their exchange rate targets. In foreign exchange markets, where it is common knowledge that the central bank intervenes to...

With only minimal restrictions on security payoffs and trader preferences, noisy aggregation of heterogeneous information drives a systematic wedge between the impact of fundamentals on the price of a security, and the corresponding impact on cash flow expectations. From an ex ante perspective,...