It's not the effect you're talking about, but it reminded me of a study that found that the value of Lojack (an early GPS-enabled car theft tracker) decreased c

It's not the effect you're talking about, but it reminded me of a study that found that the value of Lojack (an early GPS-enabled car theft tracker) decreased car theft for everyone in cities where it became prevalent, since would-be car thieves were reluctant to steal any car knowing that it might have a tracker. [1] https://www.nber.org/digest/jul97/lojack-benefits-all-car-owners-its-area https://www.nber.org/digest/jul97/lojack-benefits-all-car-ow...