Health behavior , randomized experiment , reminders , nudging , habit formation , limited attention , time inconsistency
Abstract:
We show that limited attention and present bias contribute to low levels of exercise. First, in a large randomized experiment, we find that email reminders increase gym visits by 13 % and that they benefit nearly all types of individuals. Limited attention can explain these effects. Second, using a novel dataset, we find that many bookings for gym classes are canceled, and that bookings are made even for classes that never have a waiting list. Comparing these findings to the predictions of a dynamic discrete choice model, we conclude that many gym members use bookings to commit themselves to future attendance.
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