Fausty has a link to an essay on the Ludwig von Mises Institute website about consequences that are not the stated intention. I deliberately expressed the concept in an ungainly way, because not only does the essay consider unintended consequences but the possibility that the stated consequences are not the true reason for the policy; the actual desired consequences might be to increase power or gerrymander for the politicians putting the policy forward.
This essay is one of the most coherent arguments I have seen for libertarian politics and for small government. It gives a powerful condemnation of the core ideas of socialism, but also a convincing argument that left-wing policies are in some cases deliberate, cynical power grab, ignoring the negative consequences to the public.
Of course I have talked about unintended consequences before, but the essay is a far broader, more fundamental discussion of the issue. Do have a read.