While social security systems in the developed countries including Japan are taking pay-as-you-go system based on the cooperation between generations, the fertility number as a tax base of social security is decreasing and the low fertility tendency is common in the developed countries. And if...

In this paper, we present an OLG simulation model with endogenous fertility in order to analyze the relationship between child benefit and fiscal burden in Japan. Our simulation results show that expansion of the child benefit will improve the welfare of current and future generations. On the...

To quantify the impacts of immigration on the Japanese economy, we present a large-scale numerical dynamic equilibrium model with OLG and a total of 16 countries and regions, both those that are industrialized including Japan, the U.S. and EU, and developing countries China, Brazil, the...

In this short paper, we investigate fiscal sustainability under an aging population in Japan from a financial market perspective. First, we focus on self-fulfilling expectations in the bond market and point out the risks of a fiscal collapse triggered by a change in market expectations. Second,...

We constructed an overlapping-generations model with endogenous fertility to analyze the effect of child benefits and pensions on welfare for current and future generations. The following results were obtained. First, when financial sustainability is not taken into account, the best policy to...

The present paper considers a simple (Keynesian) macroeconomic model to quantify impacts of the large scale earthquake in Tokyo on national economy variables such as economic growth, price level, interest rate, fiscal balance by Monte Carlo simulations. The simulations reveal that while GDP...

In this paper, we present an OLG simulation model with endogenous fertility in order to analyze the relationship between child benefit and fiscal burden in Japan. Our simulation results show that expansion of the child benefit will improve the welfare of current and future generations. On the...