3CAMPBELL J Y, MANKIW N G. Consumption, In- come, and Interest Rates: Reinterpreting the Time Series Evidence. NBER Macroeconomics Annual, 1989(4) : 185.
4FLAVIN M. The Adjustment of Consumption to Changing Expectations about Future Income [J]. Journal of Political Economy, 1981,89 : 974.
5ZELDES S P. Consumption and Liquidity Constraints: An Empirical Investigation[J]. Journal of Political Econ- omy, 1989,97 (2) : 305.