Imagine that you have a series of plumbing problems in your house—clogged sinks, backed up toilets—and decide to hire a plumber. Which of these two incentive structures would you choose?
(A) The plumber only gets paid when the problems are fixed.
(B) The plumber will continue to be paid indefinitely for working on the problem, and will continue to get paid as long as the problem persists
Most of us would choose option A since we are more interested in functional indoor plumbing than we are in providing a paycheck for plumbers. Hard-working plumbers should prefer option A too since it respects their dignity and skills. The vocation of the plumber is to solve plumbing problems, not to latch onto make-work projects.
So if most people would choose option A, why does the government almost always adopt an incentive structure that reflects option B?