Will Social Security Survive the Baby Boom?
Thomas Cooley, Jorge Soares
vol. 45, 1996, p. 89-121.

Financial Intermediation and the Great Depression: A Multiple Equilibrium Interpretation
Russell Cooper, João Ejarque
vol. 43, 1995, p. 285-323.

Growth in Open Economies
Sergio Rebelo
vol. 36, 1992, p. 5-46.