whatis the difference of the study of economics and sociological perspectives on the econmy?

Political economy originally was the term for studying production, buying and selling, and their relations with law, custom, and government. Political economy originated in moral philosophy. It developed in the 18th century as the study of the economies of states—polities, hence political economy.

In late nineteenth century, the term "political economy" was generally replaced by the term economics, used by those seeking to place the study of economy upon mathematical and axiomatic bases, rather than the structural relationships of production and consumption (cf. marginalism, Alfred Marshall).