1Abel,Andrew B.,1980,Empirical Investment equations:An integrative framework,Carnegie Rochester Conference on Public Policy,a supplement series to the Journal of Monetary Economics,12:39-91.
2Abel,Andrew B.,1981,A dynamic model of investment and capacity utilization,The Quarterly Journal of
3Baltagi.B.H.,2001,Econometric analysis of paned data.New York:John Wiley and Sons.
4De Leeuw,Frank,1962,The demand for capital goods by manufacturers:A study of quarterly time series,Econometrica,30:407-423.
5Im,K.S.,Pesaran M.H.,Shin Y.,2003,Testing for Unit Roots in Heteroge-neous Pane,Journal of Econometrics,Vol.115,No.1,July,pp.55～74.
6Jorgenson,DaJe W.,1965,Capital theory and jnvestrnent behavior,American Economic Review Papers and Proceedings,53:247-259.
