by Georg Friedrich Knapp (Author), J. Bonar (Translator), H. M. Lucas (Translator)

First published in 1095 in Germany, translated from the fourth edition and published in England in 1924, this seminal work ran counter to the classical and neo-classical theories of money. Knall defined money as a creation of the state, with no intrinsic value. This concept helped to lay the foundation for J. M. Keynes's work.