Payment and checkout at retail stores is increasingly being replaced by automated systems. One recent technological invention in this area is mobile self-scanning in which customers carry a mobile scanner while shopping. Mobile self-scanners give real-time feedback on spending. The device...

Can firms exploit behavioral biases to increase profits? Does consumer sophistication about these biases limit the scope of exploitation? To answer these questions, I run a series of natural field experiments with over 600,000 consumers and estimate novel sufficient statistics of consumer...

Higher order risk preferences are well-known for their relation with precautionary saving or portfolio allocation. Theoretically, they are also connected with other important behavior, such as health-related or eco-friendly behavior, but these relations have never been investigated with field...

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...