This paper discusses the role of annuities in retirement planning. It begins by explaining the basic theory underlying the individual welfare gains available from annuitizing resources in retirement. It then contrasts these findings with the empirical findings that so few consumers behave in a...

We test the main predictions of the rational addiction model, reconceptualized as rational habit formation, in the context of handwashing. To track habit formation, we design soap dispensers with timed sensors. We test for rational habit formation by informing some households about a future...