3Barro,Robert.J,1990, "Government Spending in a Simple Model of Endogenous Growth", Journal of Political Economy,98(5): $103-$126.
4Munnell,Alicia,H,1990b,"How Does Public Infrastructure Affect Regional Economic Performance?",New England Economic Review,1990(Sep/Oct):11-33.
5Kocherlakota, Narayana R.And Kei-Mu Yi 1996, "A Simple Time Series Test of Endogenous vs. Exogenous Growth Models: An Application to the United States", Review of Economics and Statistics,78(1): 126-134.