Modigliani, F. 1988 Measuring the contribution of intergenerational transfers to total wealth: Conceptual issues and empirical findings. Pp. 21-52 in D. Kessler and A. Masson, eds., Modeling the Accumulation and Distribution of Wealth. Oxford: Clarendon Press.

Mueller, E. 1976 The economic value of children in peasant agriculture. Pp. 98-153 in R. Ridker, ed., Population and Development: The Search for Interventions . Baltimore: Johns Hopkins Press.

O'Higgins, M. 1988 The allocation of public resources to children and the elderly in OECD countries. Pp. 201-228 in J.L. Palmer, T. Smeeding, and B.B. Torrey, eds., The Vulnerable. Washington, D.C.: The Urban Institute Press.

Preston, S. 1982 Relations between individual life-cycles and population characteristics. American Sociological Review 7(2):253-264.

Romer, P. 1990 Endogenous technological change. Journal of Political Economy 98(5):S71-S102.

Sahlins, M. 1972 Stone Age Economics. Chicago: Aldine-Atherton.

Samuelson, P. 1958 An exact consumption-loan model of interest with or without the social contrivance of money. Journal of Political Economy 66(6):467-482.

1975 The optimum growth rate for population. International Economic Review 16(3):531-538.

1976 The optimum growth rate for population: Agreement and evaluations. International Economic Review 17(2):516-525.

Schmertmann, C.P. 1992 Immigrants' ages and the structure of stationary populations with below-replacement fertility. Demography 29(4):595-612.

Solow, R. 1956 A contribution to the theory of economic growth. Quarterly Journal of Economics 70:65-94.

Starret, D. 1972 On golden rules, the ''biological rate of interest," and competitive efficiency. Journal of Political Economy 80:276-291.

Tobin, J. 1967 life-cycle saving and balanced economic growth. Pp. 231-256 in W. Fellner et al., eds., Ten Economic Studies in the Tradition of Irving Fisher. New York: John Wiley & Sons.

Willis, R. 1980 The old age security hypothesis and population growth. In T.K. Burch, ed., Demographic Behavior: Interdisciplinary Perspectives on Decision Making. Boulder, Colo.: Westview Press.

1987 Externalities and population. Pp. 661-702 in D.G. Johnson and R.D. Lee, eds., Population Growth and Economic Development: Issues and Evidence. Madison: University of Wisconsin Press.

1988 life-cycles, institutions and population growth: A theory of the equilibrium interest rate in an overlapping-generations model. Pp. 106-138 in R.D. Lee, W.B. Arthur, and G. Rodgers, eds., Economics of Changing Age Distributions in Developed Countries. Oxford: Clarendon Press.