In a capitalist economy, taxes are the most important instrument by which the political system puts into practice a conception of economic and distributive justice. Taxes arouse strong passions, fueled not only by conflicts of economic self-interest, but by conflicting ideas of fairness. Taking as a guiding principle the conventional nature of private property, Murphy and Nagel show how taxes can only be evaluated as part of the overall system of property rights that they help to create. Justice