The steady state general equilibrium and welfare consequences of health insurance reform are evaluated in a calibrated life-cycle economy with incomplete markets and endogenous labor supply. Individuals face uncertainty each period about their future health status, medical expenditures, labor...

Current U.S. policy extends medical insurance in the form of Medicare to individuals aged 65 and over. Younger individuals may have group health insurance through their employer, purchase individual health insurance, or go without. The fact that many individuals have no insurance, or have...

The steady-state general equilibrium and welfare consequences of a Medicare buy-in program, optional for those aged 55–64, is evaluated in a calibrated life-cycle economy with incomplete markets. Incomplete markets and adverse selection create a potential welfare improving role for health...

We study optimal capital income taxation with a Ramsey problem and relate this optimal taxation problem to the question that has been asked in the asset pricing literature, which is why the risk free interest rate is too low. We show that the Ramsey planner chooses the optimal level of capital...

This is a description of some work in progress aimed at providing a quantitative analysis of the impact of population aging in Japan on financing its National Health Insurance program. We construct a general equilibrium life-cycle economy that is used to study the impact of an aging population...

This paper aims to investigate impacts of public provision of universal health insurance (UHI) in an environment with household heterogeneity and financial market incompleteness. Various UHI polices with both distortionary (payroll-tax) and non-distortionary (lump-sum tax) financing methods are...

This paper quantitatively characterizes optimal linear and two-bracket income taxes. We consider a dynamic-stochastic-general-equilibrium model in which tax design involves redistributing income for both equity and social insurance. Substantive findings include: (i) a significant fraction of...

This paper provides a fundamental study of China's consumption and output fluctuations. The most recent literature reports that, in the post-1978 period, detrended consumption is significantly more volatile than detrended output in China. This indicates the inability to impose consumption...