A transactions model of the demand for multiple media of exchange is developed. Some results are expected, and others are both new and surprising. There are both extensive and intensive margins to currency substitution, and inflation may affect the two margins differently, leading to subtle...

A transactions model of the demand for multiple media of exchange is developed and applied to the study of currency substitution. The analysis provides a theoretical foundation for results reported in the empirical literature. Some results are expected, such as the dependence of currency...