Does and should a commodity medium of exchange have relatively low storagecosts?

I provide new existence and welfare results for a version of the Kiyotaki-W right model. I construct an equilibrium where all agents use mixed strategi es. Consequently, an object with a higher storage cost must have a higher a cceptability. Therefore, the endogenous transaction pattern corresponds to the observation that money is dominated in rate of return by other assets ( e.g., bonds), something that is a central issue in monetary economics. Furt hermore, at least in a neighborhood of equal storage costs, the equilibrium that I construct Pareto dominates alternative equilibria in which better o bjects are widely accepted.