Published online by Cambridge University Press: 30 August 2016
We construct a microfounded model of money with Gul–Pesendorfer preferences. In each period, agents are tempted to spend all their money by the end of the period, and they suffer from the forgone utility that could have been obtained by adopting the tempting choice. We find that the Friedman rule may not be optimal. A positive nominal interest rate improves welfare because it reduces the real money balances and renders the temptation less attractive. The welfare gained by deviating from the rule is equivalent to 0.67% of consumption.
This research is financially supported by Grant-in-Aid for Specially Promoted Research (No. 23000001). We thank Takashi Shimizu and Ryoichi Imai for their very valuable comments. We also thank the seminar participants at Osaka University. We thank two anonymous referees for their valuable comments.