Some Empirical Observations on the Forward Exchange Rate Anomaly

This paper looks at issues surrounding the testing of fractional integration and nonlinearity in relation to the forward exchange rate anomaly of Fama (1984). Recent tests for fractional integration and nonlinearity are discussed and used to investigate the behaviour of three exchange rates and premiums. The findings provide some support for I(1) exchange rates but suggest fractionality for premiums, mixed evidence on cointegration, and a strong possibility of time-wise nonlinearity. Significantly, when the nonlinearity is modelled using a random field regression, the forward anomaly disappears.

Nonlinearity as an Explanation of the Forward Exchange Rate Anomaly

This paper shows that nonlinearity can provide an explanation for the forward exchange rate anomaly (Fama, 1984). Using sterling-Canadian dollar data, and modelling nonlinearity of unspecified form by means of a random field, we find strong evidence of time-wise nonlinearity and, significantly, obtain parameter estimates that conform with theory to a high degree of precision: the anomaly disappears.Forward exchange rate anomaly; nonlinearity; random field regression

Nonlinearity as an explanation of the forward exchange rate anomaly

This paper shows that nonlinearity can provide an explanation for the forward exchange rate anomaly (Fama, 1984). Using sterling-Canadian dollar data, and modelling nonlinearity of unspecified form by means of a random field, we find strong evidence of time-wise nonlinearity and, significantly, obtain parameter estimates that conform with theory to a high degree of precision: the anomaly disappears