8Abel, A., N. G. Mankiw, L. H. Summers, and R. Zeckhauser, 1989, "Assessing Dynamic Efficiency: Theory and Evidence", Review of Economic Studies 56 (January) : P1--20.
9Barro, R. J., 1974, "Are Government Bonds Net Wealth? " Journal of Political Economy 82, P1095--1117.
10Cass, D., 1965, "Optimum Growth in an Aggregative Model of Capital Accumulation " Review of Economic Studies, 32 (July), P233--240.