关键词: 门限, 投资, 消费, 非线性

Abstract: At present, because of the depression of international economic situation and export market, stimulating domestic demand becomes to be important of China’s economic work, and the relationship between investment and consumption has been discussed by economists again. In this paper, we describe the principle of dealing the relation of investment rate and consumption rate reasonably, and do non-linear regression using the Chinese panel date from 1995 to 2007 according to investment threshold characters. The result shows that there are two investment rate thresholds: one is 44%, and consumption rate improvement increases the growth rate when investment rate is below this threshold; the other is 36%, and consumption rate improvement increase economic growth rate greatly when investment rate is below this threshold. However, to rely solely on the consumption demand will lead to insufficient investment "trap". According to this problem, this paper suggests two policy recommendations: create new consumption which can greatly promote the growth of the secondary industry; implement different strategies in the east and central and western regions. 

Key words: Threshold, Investment, Consumption, Non-linear