L. Albert Hahn published the first edition of the Economic Theory of Bank Credit in 1920 and a radically revised third edition in 1930. Economic Theory of Bank Credit is a clear exposition of a theory of credit and stands in the tradition of Harley Withers, Henry Macleod, and Knut Wicksell. A theory of credit recognizes that banks are not only intermediaries of savings but in fact create money themselves. This idea is paired with a detailed account of the technical processes of the banking sector. In Part Two, Hahn provides an economic account of the effects of credit creation on the economy:...