<Li> History of economics </Li> <Li> Economic history (academic study) </Li> <Li> Schools of economics </Li> <Ul> <Li> Microeconomics </Li> <Li> Macroeconomics </Li> <Li> Methodology </Li> <Li> Heterodox economics </Li> <Li> JEL classification codes </Li> </Ul>

How does the digitization of books movies and music affect inventory economies of scale