We examine the effect of asset price bubbles in the Kiyotaki-Moore model. We show that the dynamic interactions between bubble-asset price, land price, and output generate powerful bubbly dynamics. The boom-bust cycles in bubble-asset price cause boom-crash cycles in the land market...

This paper theoretically investigates the relationship between asset price bubbles and bailout. We show that although bailout may mitigate adverse e¤ects of bubbles' bursting ex-post, it is more likely to cause asset price bubbles by encouraging risk-taking behavior ex-ante. In other words,...

This paper analyzes the effects of bubbles in an infinitely-lived agent model of endogenous growth with financial frictions and heterogeneous agents. We provide a complete characterization on the relationship between financial frictions and the existence of bubbles. Our model predicts that if...

景気循環会計の理解には，動学的一般均衡モデルの知識が必要となるため，その分野の専門外からすると理解し難い．本稿では，景気循環会計において労働市場の歪みを表すlabor wedge...

We consider an economy where individuals face uninsurable risks to their human capital accumulation, and study the problem of determining the optimal level of linear taxes on capital and labor income together with the optimal path of the debt level. We show both analytically and numerically that...

We study a monetary model in which buyers choose search intensity and prices are considered as given in the decentralized market. In doing so, we indicate that the Friedman rule may not be optimal. Buyers' search intensity is excessively low under the rule, because their surplus is less than the...

This study investigates aggregate implications of fiscal policy that responds to asset price fluctuations. In our sticky-price model, the monetary authority follows a Taylor rule and the fiscal authority follows a rule that the target of government spending is asset prices and responds...

本稿の目的は，英国ブレア労働党政権の医療改革が財政にどのような影響を与えたか， 健全性・公平性の観点から検証することにある。先進諸外国は福祉国家として財政を維持...

When individuals' labor and capital income are subject to uninsurable idiosyncratic risks, should capital and labor be taxed, and if so how? In a two period general equilibrium model with production, we derive a decomposition formula of the welfare e ects of these taxes into insurance and...

This paper investigates the Laffer curves in Japan, based on a neoclassical growth model. It is found that while the labor tax rate is smaller than that at the peak of the Laffer curve, the capital tax rate is either very close to, or larger than, that at the peak of the Laffer curve. This...