We examine how ability-screening affects demand for education and the shape of an optimal education system. Explicitly incorporating gradual screening by education into the model, we illustrate how individuals of different abilities decide to stay in education or drop out. Gradual screening...

Social security tends to be unsustainable in nature. It reduces individuals'' demand for children as a measure to support their lifestyle during old age, which in turn undermines the financial basis of social security. Using a simple overlapping generations model with endogenous fertility and...

Social security tends to be unsustainable in nature in that it reduces individuals' demand for children as a measure to support their old age, which in turn undermines the financial base of social security. Using a simple overlapping-generations model with endogenous fertility and income...

This paper presents examination of how a pension policy affects income growth and the inflation rate in a utility model. Even if the contribution rate of pension increases because of an aging society, an aging society increases income growth and the inflation rate. Moreover, this paper presents...