Firms can save considerable money if consumers conserve resources (e.g., if hotel patrons turn off the lights when leaving the room, restaurants patrons use fewer paper napkins, or airline passengers clean up after themselves). In two studies conducted in real-world hotels, the authors show that...

New technologies aimed at nudging large numbers of individuals towards healthier behavior (e.g., fitness trackers, wearables, A.I.-based health coaching) increasingly focus on allowing users to track their own health goal-directed behavior on an ongoing basis, in the hope to boost their...