This paper introduces an overlapping-generations model with earnings hetero- geneity and borrowing constraints. The labor income tax and the allocation of tax revenue across social security and forward intergenerational public goods are determined in a bidimensional majoritarian voting game...

This paper presents a politico-economic model that includes a mutual link between earnings mobility and redistributive politics. The model demonstrates that an economy attains a unique, unskilled-majority equilibrium where unskilled, lowincome agents support a low, rather than a high,...

This paper investigates a principal-agent model in which an owner (principal) optimizes a contract with a manager (agent) delegated to undertake an investment project. In the model, we explore the effects of costly exploration by which the manager learns the real value of development cost. We...

This paper is based on a questionnaire survey that examined gender differences with respect to forthcoming marriage, and to expected child birth. The following major results were identified: ‡@ Life satisfaction and subjective well-being were higher among people who planned to get married, as...

In this paper we analyze return and volatility spillovers during overlapping trading hours between China (Shanghai Composite Index) and Japan (Nikkei 225 Index) using intraday high-frequency data. We first adjusted the 5-min. returns for intraday periodicity with Flexible Fourier Form (FFF)....

This paper empirically studied the model-free implied volatility indices constructed from options prices of the Nikkei 225 index during 2005-2010. The concept of corridor volatility index is compared and contrasted with the methodology of the famous VIX index developed by the Chicago Board...

The standard argument is that while money creation and credit creation have different channels, they provide the same theoretical size of multipliers. However, there is usually some difference in practice. Consequently, in this paper we investigate the long-run relationship between the credit...

We construct an endogenous growth model with productive public capital and government debt when government debt is adjusted to the target level. We examine how reducing public debt in an economy with a large public debt affects the transition of the economy and welfare. We find that the...

This paper examines the welfare-maximizing degree of patent protection in a growth model where the engines of economic growth are R&D and public services. We find that an increase in public services enhances the positive and negative effects of strengthening patent protection on R&D and the...

We investigate the effects of urban and rural populations and area sizes on the expenditures of the prefecture-level local government. We found the following three results. The first relates to the expenditure for urban populations. At around 220,000 people, per capita local government...