Economics is the social science about which Schutz actually has the most elaborate theory. Relevant passages are brought together here to show how the "postulates" or "rules for scientific procedure" of economics specify the postulates of the cultural sciences in general and of the social sciences specifically, how economics is a theoretical science, and how it has at least the schools of thought within it of classical economics or utilitarianism as well a modern economics, which is based on the principle of marginal utility and which Schutz supported.