This paper proposes a measure of exchange rate disconnect. Working in a two-currency international economy, our theory implies that the disconnect is the ratio of two martingales. Weanalyze empirically our measure of disconnect using 406 pairs of economies to reveal a geography of disconnect....

The large appreciation and depreciation of the US Dollar in the 1980s stimulated an important debate on the usefulness of unit root tests in the presence of structural breaks. In this paper, we propose a simple model to describe the evolution of the real exchange rate. We then propose a more...