Author: Mikhail Golosov Publisher: ISBN: Category : Taxation Languages : en Pages : 43
Book Description
We study optimal tax policy in a dynamic private information economy with endogenous private markets. We characterize efficient allocations and competitive equilibria. A standard assumption in the literature is that trades are observable by all agents. We show that in such an environment the competitive equilibrium is efficient. The only effect of government interventions is crowding out of private insurance. We then relax the assumption of observability of consumption and consider an environment with unobservable trades in competitive markets. We show that efficient allocations have the property that the marginal product of capital is different from the market interest rate associated with unobservable trades. In any competitive equilibrium without taxation, the marginal product of capital and the market interest rate are equated, so that competitive equilibria are not efficient. Taxation of capital income can be welfare-improving because such taxation introduces a wedge between market interest rates and the marginal product of capital and allows agents to obtain better insurance in private markets. Finally, we use plausibly calibrated numerical examples to compute optimal taxes and welfare gains and compare results to an economy with a restricted set of tax instruments, and to an economy with observable trades.
Author: Raj Chetty Publisher: ISBN: Category : Social security Languages : en Pages : 39
Book Description
This paper characterizes the welfare gains from redistributive taxation and social insurance in an environment where the private sector provides partial insurance. We analyze stylized models in which adverse selection, pre-existing information, or imperfect optimization in private insurance markets create a role for government intervention. We derive simple formulas that map reduced-form empirical estimates into quantitative predictions for optimal tax and social insurance policy. Applications to unemployment and health insurance show that taking private market insurance into account matters significantly for optimal benefit levels given existing empirical estimates of the key parameters.
Author: Raj Chetty Publisher: ISBN: Category : Languages : en Pages : 43
Book Description
This paper characterizes the welfare gains from redistributive taxation and social insurance in an environment where the private sector provides partial insurance. We analyze stylized models in which adverse selection, pre-existing information, or imperfect optimization in private insurance markets create a role for government intervention. We derive simple formulas that map reduced-form empirical estimates into quantitative predictions for optimal tax and social insurance policy. Applications to unemployment and health insurance show that taking private market insurance into account matters significantly for optimal benefit levels given existing empirical estimates of the key parameters.
Author: Narayana R. Kocherlakota Publisher: Princeton University Press ISBN: 1400835275 Category : Business & Economics Languages : en Pages : 230
Book Description
Optimal tax design attempts to resolve a well-known trade-off: namely, that high taxes are bad insofar as they discourage people from working, but good to the degree that, by redistributing wealth, they help insure people against productivity shocks. Until recently, however, economic research on this question either ignored people's uncertainty about their future productivities or imposed strong and unrealistic functional form restrictions on taxes. In response to these problems, the new dynamic public finance was developed to study the design of optimal taxes given only minimal restrictions on the set of possible tax instruments, and on the nature of shocks affecting people in the economy. In this book, Narayana Kocherlakota surveys and discusses this exciting new approach to public finance. An important book for advanced PhD courses in public finance and macroeconomics, The New Dynamic Public Finance provides a formal connection between the problem of dynamic optimal taxation and dynamic principal-agent contracting theory. This connection means that the properties of solutions to principal-agent problems can be used to determine the properties of optimal tax systems. The book shows that such optimal tax systems necessarily involve asset income taxes, which may depend in sophisticated ways on current and past labor incomes. It also addresses the implications of this new approach for qualitative properties of optimal monetary policy, optimal government debt policy, and optimal bequest taxes. In addition, the book describes computational methods for approximate calculation of optimal taxes, and discusses possible paths for future research.
Author: Raj Chetty Publisher: ISBN: Category : Social security Languages : en Pages : 48
Book Description
In an influential paper, Baily (1978) showed that the optimal level of unemployment insurance (UI) in a stylized static model depends on only three parameters: risk aversion, the consumption-smoothing benefit of UI, and the elasticity of unemployment durations with respect to the benefit rate. This paper examines the key economic assumptions under which these parameters determine the optimal level of social insurance. A Baily-type expression, with an adjustment for precautionary saving motives, holds in a very general class of dynamic models subject to weak regularity conditions. For example, the simple reduced-form formula derived here applies with arbitrary borrowing constraints, endogenous insurance markets, and search and leisure benefits of unemployment. A counterintuitive aspect of this result is that the optimal benefit rate appears not to depend on (1) any benefit of UI besides consumption-smoothing or (2) the relative magnitudes of income and substitution effects in the link between UI benefits and durations. However, these parameters enter implicitly in the optimal benefit calculation, and estimating them can be useful in testing whether the values of the primary inputs are consistent with observed behavior.
Author: YiLi Chien Publisher: ISBN: Category : Languages : en Pages : 18
Book Description
The authors study optimal capital income taxation in heterogeneous agent economies featuring endogenous government spending. Similar to Aiyagari (1995), they find that the long-run optimal capital tax rate should not be zero as long as the competitive equilibrium risk-free interest rate differs from the subjective time discount rate. The authors first argue that this result holds in a wide range of economic environments and is not limited to only the standard incomplete market model with heterogeneous agents. As an example, a decentralized economy with limited commitment is considered. Second, they show that this result critically depends on the assumption of endogenous government spending. Within the same limited commitment environment, they show that the long-run capital taxation becomes zero with exogenous government spending. The authors conclude that the optimal Ramsey taxation in heterogeneous agent economies with exogenous government spending and various frictions is still an open question.
Author: Andreas Pollak Publisher: Mohr Siebeck ISBN: 9783161493041 Category : Business & Economics Languages : en Pages : 204
Book Description
Designing a good unemployment insurance scheme is a delicate matter. In a system with no or little insurance, households may be subject to a high income risk, whereas excessively generous unemployment insurance systems are known to lead to high unemployment rates and are costly both from a fiscal perspective and for society as a whole. Andreas Pollak investigates what an optimal unemployment insurance system would look like, i.e. a system that constitutes the best possible compromise between income security and incentives to work. Using theoretical economic models and complex numerical simulations, he studies the effects of benefit levels and payment durations on unemployment and welfare. As the models allow for considerable heterogeneity of households, including a history-dependent labor productivity, it is possible to analyze how certain policies affect individuals in a specific age, wealth or skill group. The most important aspect of an unemployment insurance system turns out to be the benefits paid to the long-term unemployed. If this parameter is chosen too high, a large number of households may get caught in a long spell of unemployment with little chance of finding work again. Based on the predictions in these models, the so-called "Hartz IV" labor market reform recently adopted in Germany should have highly favorable effects on the unemployment rates and welfare in the long run.
Author: Michał Konrad Kuklik Publisher: ISBN: Category : Health care reform Languages : en Pages : 98
Book Description
"Chapter 1, Health Insurance Reform and Bankruptcy. Medical bankruptcy was at the heart of the health care reform debate. According to Himmelstein et al. (2009), 62.1 percent of bankruptcies in the United States in 2007 were due to medical reasons. At the same time over 15 percent of Americans had no health insurance. The 2010 health care reform was designed to address the lack of health coverage and medical bankruptcies. In this paper, we employ a dynamic stochastic general equilibrium overlapping generations model with incomplete markets to quantitatively evaluate the impact of the health care reform on the health insurance market and the bankruptcy rate. We find that (i) the reform fails to address the bankruptcy problem as it cuts the bankruptcy rate by only 0.06 percentage point to 0.94 percent and the medical bankruptcy rate by 0.07 percentage point to 0.70 percent; (ii) the reform succeeds in providing almost universal insurance coverage with only 4.1 percent remaining uninsured; (iii) the average tax rate has to increase by 1.1 percent to finance the reform; (iv) the reform increases welfare by 5.2 percent; (v) the redistribution component of the reform drives the welfare gain by 5.8 percent, and the insurance market restructuring decreases welfare by 1.6 percent. Chapter 2, Optimal Taxation and Labor Supply. In a canonical life-cycle heterogeneous agents model the optimal capital income tax is as high as 36 percent, as reported by Conesa et al. (2009). Even though the endogenous labor supply drives this result, a typical model fails to account for the basic life-cycle features of the labor supply observed in the U.S. data. In this paper we develop a life-cycle model that replicates labor choices of households in the U.S. The model's key features are the non-linear wages and inter-vivos transfers. The former makes hours of work highly persistent and helps to account for labor choices at the extensive margin over the life cycle. The latter allows us to account for labor choices in early life up to the age of 30. We find that the optimal capital income tax is 7.4 percent, which is significantly lower than what Conesa et al. (2009) find. Finally, we show that the inter-vivos transfers have a very small impact on the optimal capital income tax"--Page v-vi.
Author: Mikhail Golosov
Author: Raj Chetty
Author: Raj Chetty
Author: Narayana R. Kocherlakota
Author: Raj Chetty
Author: Florian Scheuer
Author: YiLi Chien
Author: Raj Chetty
Author: Andreas Pollak
Author: Michał Konrad Kuklik