On the Source, Formulation and Evolution of Marx’s Credit Theory

Marx's credit theory,as an important part of Marxism economic theory,has not been paid enough attention to for a long time.This paper studies the process of Marx's credit theory's source,formulation and evolution.Usury credit and the bourgeoisie's credit thought are Marx's credit theory's source.Virtual capital theory is important in Marx's credit theory.We can learn much from it in financial crisis today.