This paper addresses currency competition from an information perspective. Transactions in traditional models do not convey information, so transaction costs -- the driver of competition outcomes -- are driven by market size. In our model transactions do convey information (consistent with...

This paper addresses the puzzle of regime-dependent volatility in foreign exchange. We extend the literature in two ways. First, our microstructural model provides a qualitatively new explanation for the puzzle. Second, we test implications of our model using Europe's recent shift to rigidly...