Abstract Between (2,3) and (2,4), does the Difference Principle (DP) select the first one, the second one, or is it indifferent? That last interpretation is confirmed by Rawls’s use of the curve of the perfectly complementary goods. It admits curves of indifference. Once the worst off is maximized, one is indifferent between all the corresponding … Continue reading About the Unicity of the Difference Principle and the Complementarity of Economics and Philosophy on the Question of Justice. Part 1: About the Unicity of Rawls’s Difference Principle