5Campbell John Y. and N. Gregory Mankiw, 1991, The Response of Consumption to Incame: A Cross-section Investigation [J], European Economic Review, Vol. 35, No. 4, 723-756.
6Thomas S. Stoker, 1986, Simple Tests of Distributional Effects on Macroeconomic Equations [J], Journal of Political Economy, Vol. 94, No. 4, 763-795.