|I want to say a word about ideology. Our choice of economic models boils down to rationalizations for our preferences. For example, if you look at a poor person and have an urge to share with them, I can give you an economic ideology to fit, that is, a rationalization for equality, namely that the marginal benefit of an additional dollar is more for a poorer person. If however your orientation is more that you look at _rich_ people with admiration or envy, you'll use the framework of the 20 grids to convince yourself and others that government's role, especially in redistribution, should be minimized. But perhaps some inefficiency is justified for the sake of a fairer distribution. It depends what kind of person you want to be.