In this paper we argue that the relevant decision for the majority of US households is not the fraction of assets to be held in interest bearing form, but whether to hold any of such assets at all (we call this `the decision to adopt' the financial technology). We show that the key variable...

Following the study of U.S. regional data by Mulligan and Sala-i-Martin (1992) and the discussion by Fujiki and Mulligan (1996a) of empirical models of the demand for money, the paper uses Japanese prefectural data to estimate the parameters of a money demand function. The cross-sectional...