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This paper examines whether social security programs induce a withdrawal of the elderly from the labor force and create jobs for the young in Japan. The key messages are summarized as follows. First, our historical overview suggests that young unemployment issues have not motivated social...

A univariate real-valued function is said to be completely monotone if it takes positive values and alternate the signs of its higher order derivatives, starting from everywhere negative first derivatives. We prove that the representative consumer's discount factor of a continuous-time economy...

Ferejohn and Page transplanted a stationarity axiom from Koopmans' theory of impatience into Arrow's social choice theory with an infinite horizon and showed that the Arrow axioms and stationarity lead to a dictatorship by the first generation. We prove that the negative implications of their...

Chile's 1981 reform revolutionized pension design and created a system that was lauded and emulated widely. The main feature of the system was the creation of state-mandated, privately managed individual pension capitalization accounts based on contributions of employees. After nearly three...

This paper analyzes how an inventor should fix the licensing terms to license a standard in complying with a non-discrimination requirement. Using a model incorporating imperfect competition between a finite number of users and product differentiation, we compare three different regimes: fixed...

In a continuous-time economy with complete markets, we show how the heterogeneity in the individual consumers' risk attitudes and impatience would affect the representative consumer's counterparts. Specifically, our formulas tell us how his risk tolerance and impatience will change over time,...