A situation in which a policy or intervention that is morally sound and logically justified in theory produces the opposite outcome in practice, due to ignored behavioral responses, incentive structures, or system dynamics.
Raising taxes on high-income individuals to increase public revenue, only to see capital and talent relocate, resulting in a smaller taxbase and lower overall revenue. That’s a Heidemanns Paradoks
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"