No matter which measures you choose, as soon as you tie financial incentives to them, people will find ways to pervert what they're supposed to measure. That ob

No matter which measures you choose, as soon as you tie financial incentives to them, people will find ways to pervert what they're supposed to measure. That observation is so general that there's even a name for it: https://en.wikipedia.org/wiki/Goodhart%27s_law https://en.wikipedia.org/wiki/Goodhart%27s_law