The following seem related: - Goodhart's Law, often stated as "When a measure becomes a target, it ceases to be a good measure". - the Cobra effect. When the

The following seem related: - Goodhart's Law, often stated as "When a measure becomes a target, it ceases to be a good measure". - the Cobra effect. When the British government placed bounties on wild cobras, people started breeding cobras. - Campbell's law: "The more any quantitative social indicator is used for social decision-making, the more subject it will be to corruption pressures and the more apt it will be to distort and corrupt the social processes it is intended to monitor."