Is the international propagation of financial shocks non-linear?: Evidence from the ERM

Abstract

This paper tests for the presence of non-linearities in the propagation of devaluation expectations among the countries that were members of the Exchange Rate Mechanism of the EMS. We show that whenever it is possible to estimate a model for financial interdependence, a full-information technique to detect such non-linearities is more efficient than the limited-information estimator proposed, in a similar context, by Rigobon (2000). This happens, in particular, when the periods of market turbulence are relatively short. Our evidence suggests that non-linearities in the propagation of devaluation expectations were a general phenomenon in the ERM. Normally the non-linearity amounts to a stronger effect in the same direction, but sometimes, as in the Dutch case, it implies a significant effect in the opposite direction: evidence of flight-to-quality.