8Friedman, M and Schwartz, AJ. Money and business cycles[J] . Review of Economics and Statistics 45 (1) , 1963, February ,Supplement: 32-64.
9Milton Friedman. A Theory of The Consumption Function[M] . Princeton. Princeton University Press. 1957.
10Modighani F and Brumberg R. Utility Analysis and the Consumption Function: An Interpretation of Cross-Section Data [M] .Post-Keynesian Economics. Rutgem University Press.1954: 388-436.