国外环境税问题研究进展

对国外学者关于环境税收问题研究的新成果进行综述。诠释最优环境税定义及探寻不同条件假设下最优环境税率的确定,从一般均衡的视角考察环境质量对劳动供给决策的影响,探讨税收相互作用的效应和分析学者重点研究的双重红利及其存在条件。最后根据发达国家环境税政策运行的经验,分析将环境税作为环境管制措施引入发展中国家的可行性。     

Tax Policy Coordination, Vertical Externalities, and Optimal Taxation in a System of Hierarchical Governments

Tax policies of two levels of government (state and federal) with overlapping tax bases are considered. This overlap leads to “vertical” fiscal externalities are considered when several different commodities are in the tax base and the tax bases of the two levels of government may not be identical. When the governments share a tax base, the mix of combined taxes is optimal. With different tax bases, combined taxes are no longer optimal as federal tax rates are adjusted to reflect state public service levels. When grants are available, a welfare-maximizing mix of taxes and public services is obtained.     

出口退税、汇率调整与出口企业的最优销量——基于相互市场古诺模型的分析

文章利用冰山假说把国内税率、出口退税率以及汇率政策因素纳入存在多个国内与外国企业的相互市场古诺模型,分析了以国内税、出口退税与汇率为核心的策略性贸易政策对出口企业利润最大化的最优出口销量与国内销售的影响,并且以这种比较静态分析为基础,对各种单一政策与多项政策组合的调整效力进行排序。这些分析得出如下的结论:就单一政策的调整效力而言,出口退税优于国内税收与汇率政策;就政策组合的调整效力而言,出口退税与国内税组合优于国内税与汇率的组合。     

Property taxes and the timing of urban land development

This paper develops an optimal timing model which extends our understanding of the effects which property taxes have on the timing of land development. Comparative static effects of changes in property tax rates are investigated and policy rules are developed for the use of differential pre- and post-development tax rates to affect the timing of development. Changes in the property tax rate are found to be non-neutral with respect to the timing of development in most cases, accelerating or delaying development depending upon specific market conditions.     

General equilibrium and optimal taxes

It is shown that if subsidies are not excessive, there exists a general competitive equilibrium in the presence of a complex tax structure. Furthermore, under certain continuity assumptions, a tax structure which is optimal from the social point of view can be determined. Procedures maximize quasi-concave after tax profit functions. Consumers have convex budget sets reflect- ing their income from sales and profits minus taxes on fixed income and progressive sales taxes. Their preferences are interdependent, intransitive and incomplete. The government provides public goods and determines the optimal tax regime on the basis of its preferences on the final competitive consumption allocation.     

The effect of business taxation on the location of industry

A theoretical and econometric model is specified which permits the estimation of the effect of local taxes on economic activity in a locality. A location elasticity of ?0.35 is found for manufacturing activity in New York City with respect to business taxes, while no significant elasticity is found for nonmanufacturing activity. The deadweight losses and revenue effects of the tax are analyzed and calculated, as are the optimal second-best taxes for a locality.     

Optimal taxation and intergovernmental transfer in a dynamic model with multiple levels of government

In this paper, we study the optimal choices of the federal income tax, federal transfers, and local taxes in a dynamic model of capital accumulation and with explicit game structures among multiple private agents, multiple local governments, and the federal government. In general, the optimal local property tax is zero if the local property tax is constrained to be nonnegative, whereas the optimal local consumption tax is always positive. When the local consumption tax is chosen optimally, the federal income tax can be either positive or negative. For most reasonable parameter values, our numerical calculations have shown that with a positive local consumption tax there exists a reverse transfer from local governments to the federal government.     

How should heavy-duty trucks be taxed?

This paper develops and implements an analytical framework for estimating optimal taxes on the fuel use and mileage of heavy-duty trucks in the United States, accounting for external costs from congestion, accidents, pavement damage, noise, energy security, and local and global pollution. The analysis allows for endogenous fuel economy, increased auto travel in response to reduced truck congestion, and distinguishes driving by truck type and region. We estimate the optimal (second-best) diesel fuel tax at $1.12 per gallon and implementing it increases welfare by $1.34 billion per annum. Optimizing over both fuel and mileage taxes, and differentiating mileage taxes by vehicle type and region, yields progressively higher welfare gains. The most efficient tax structure involves a diesel fuel tax of 69 cents per gallon and charges on trucks that vary between 7 and 33 cents per mile; implementing this tax structure yields estimated welfare gains of $2.06 billion.     

Optimal dynamic tax evasion

We study optimal dynamic tax evasion in the framework proposed by Lin and Yang (2001) and Dzhumashev and Gahramanov (2011) with some modifications: a more flexible utility function, a more realistic audit process, and a penalty function which can be defined both on evaded income and evaded taxes. In the former case the elasticity between tax rate and tax evasion is positive, unless the subsistence consumption level is higher than a given threshold. In the latter case the relationship is usually negative , but the value of elasticity depends on the form of absolute risk aversion. In particular we show that for increasing relative risk aversion, for a tax rate higher than 50%, the elasticity may even become positive. US data are consistent with IRRA preferences.     

Issues in the Design and Reform of Commodity Taxes: Analytical Results and Empirical Evidence

The motivation of this paper is two fold: (a) review the literature on design and reform of commodity taxes, (b) describe attempts at extending the traditional framework. The paper states the principal results in optimal commodity taxation with attention paid to assumptions made in their derivation. Empirical evidence on the structure of optimal commodity taxes is presented with special reference to the issue of uniformity versus selectivity, and the redistributive potential of commodity taxes. The paper, then, provides analytical and empirical evidence on the following extensions to the traditional framework: (i) presence of child subsidy and demographic effects on demand, (ii) fiscal federalism, (iii) tax evasion.     

Auto pollution and congestion in an urban model: An analysis of alternative strategies

Congestion and pollution externalities associated with automobile driving are examined for their effect on urban structure. A monocentric urban model which incorporates household preferences for both an unpolluted environment and for leisure time is presented, and used to evaluate alternative pricing and emissions policies on automobile use and their effects on city structure. Optimal tax gradients for driving are derived, and compared with second best cases of per mile taxes and no taxes. As externalities gradients become more nonlinear, the welfare gains from employing optimal taxes rather than a per mile tax are increased. The appropriate choices of an emission standard, highway capacity, and highway pricing policy must be made simultaneously and depend on household preferences.     

On minimizing the welfare cost of fiscal policy: evidence from South Asia

This study evaluates whether India, Pakistan, and Sri Lanka minimized the welfare cost of their fiscal policies? For this purpose it tests tax smoothing hypothesis and finds that there is a weak tax smoothing in Pakistan and Sri Lanka whilst fiscal policy in India has not been conducted in an optimal fashion in accordance with the predictions of the hypothesis. The difference in results is due to difference in budget deficits as the deficits of Pakistan and Sri Lanka are higher as compare to India so they are careful to reduce volatility in budget deficits by trying to keep close correspondence between taxes and expenditures while India, with comparatively less deficit, was more careful regarding its debt. Therefore, to minimize the cost a close correspondence between permanent expenditure and taxes are required. In this context the best policy option would be an initiation of prompt action program of tax base expansions and expenditure rationalization.     

On revenue recycling and the welfare effects of second-best congestion pricing in a monocentric city

This paper examines congestion taxes in a monocentric city with pre-existing labor taxation. When road toll revenue is used to finance labor tax cuts, 35% of the optimal road tax in our numerical model does not reflect marginal external congestion costs, but rather functions as a Ramsey–Mirrlees tax, i.e. an efficiency enhancing mechanism allowing for an indirect spatial differentiation of the labor tax. This adds a quite different motivation to road pricing, since welfare gains can be produced even in absence of congestion. We find that the optimal road tax is non-monotonic across space, reflecting the different impacts of labor supply elasticity and marginal utility of income, which both vary over space. The relative efficiencies of some archetype second-best pricing schemes (cordon toll, flat kilometer tax) are high (84% and 70% respectively). When road toll revenue is recycled lump-sum, the optimal toll lies below its Pigouvian level. Extensions in a bimodal framework show that the optimality of using road toll revenue to subsidize public transport depends on the initial inefficiency in public transport pricing.     

Vertical income tax externalities and fiscal interdependence: evidence from the US

Concurrent taxation is a feature of many federal systems. As a result, the tax policy of one level of government affects the tax base of the other. A way to check the empirical relevance of this hypothesis is to test for the existence of interdependencies in the tax setting behaviour of various layers of government. Following this approach, this paper estimates the reaction of US state personal income and general sales taxes to federal tax rates, taking into account the special features of the US tax system. We find that when the federal government increases taxes, there is a significant positive response of state taxes.     

Estimating the sensitivity of state tax revenue to cyclical and wealth effects

In this study, we estimate the elasticities of alternative sources of state tax revenue relative to the economy, as measured by GSP, and to wealth, as measured by the S&P500. Next, efficient tax frontiers are estimated for each state by minimizing the standard deviation, given the current average growth rate of revenues. It is shown how states could attain the same expected growth rate of tax revenues with less volatility by modifying the composition of their existing tax structures. In most cases, corporate income taxes are found to reduce efficiency due to their high volatility without a correspondingly high growth rate.     

Distortionary Taxation and Labour Market Performance

Quarterly estimates of consumption, capital and labour tax rates are provided for six major OECD countries. We then use the 'stylized facts' methodology to evaluate the strength, sign and phase of cyclical comovements between tax rates and labour market variables. Labour taxes distort labour market de-cisions and help explain why the unemployment rate is so high in continental Europe. However, labour taxes cannot be the only determinant of diverging unemployment rates since the labour force is also reduced by higher taxes. Finally, we offer some preliminary structural evidence showing employment growth in particular to be negatively related to the taxation of labour.     

Income taxes and the destination of movers to multistate MSAs

We examine how differences in state income tax rates, as well as other state and local taxes and public service expenditures, influence the choice of state of residence for households (federal tax filers) moving into multistate metropolitan areas (MSAs) using data from the IRS on the migration of taxpayers. MSAs that are on borders provide a spatial discontinuity—discrete differences in state tax rates within a single labor market. These MSAs allow residents to live in one state and work in another state. We find that differences in state income tax rates have a significant impact on the relative rate of migration to the states within an MSA. However, contrary to what would be expected, this impact is only significant in MSAs in which the filing state is based on employment (states without reciprocity) and not for those states in which the filing state is the state of residence (states with reciprocity). In MSAs where states do not have reciprocity agreements, a difference of ten percent in tax rates leads to a 4.1 percent difference in the relative rate of incoming taxpayers. Analogously, we find that a ten percent difference in state tax rates in these MSAs results in a 3.3 percent difference in the rate of tax base inflow (AGI). Our results suggest that one reason that differences in state income taxes appear to have more impact in multistate MSAs without reciprocity is that only relatively large differences in state income tax rates have any impact on migration and these differences are much more pronounced in MSAs without reciprocity.     

Environmental taxes,reforms and economic growth: an empirical analysis of panel data

This paper explores the relationship between environmentally related taxes and the economic growth rate. The analysis also investigates whether this relationship differs between countries that have implemented environmental tax reforms (ETRs) and those that have not. Using panel data from 31 OECD countries over the period 1994–2013, the paper finds that when we allow environmentally related tax revenues to interact with an initial level of real GDP per capita, the overall revenues of these taxes are negatively associated with the economic growth rate in the short and long term. Furthermore, we show that the higher the initial level of GDP per capita, the more environmentally related tax revenues can promote the economic growth rate. The analysis also reveals that the relationship between environmentally related tax revenues and economic growth varies between countries that have a mechanism to redistribute environmentally related tax revenues and those that do not.     

HOW SHOULD CAPITAL BE TAXED?

This survey discusses how capital should be taxed in advanced economies. We review the theoretical optimal tax literature, survey empirical studies on the distribution of capital and the distortionary costs of capital taxation, and analyze the desirability of specific taxes on capital income, wealth, property, inheritances, and corporate profits. Our overall conclusion is that capital taxation plays an important role in an optimal tax system, but only certain ways of taxing capital are able to strike a balance between optimality and administrative feasibility.     

An Empirical Analysis of the Impact of Government Tax and Auditing Policies on the Size of the Underground Economy:

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This study empirically examines the impact of federal income tax rates, IRS penalties on unpaid tax liabilities, and audit rates of the Internal Revenue Service on the size of the underground economy in the United States, Recent data generated by Edgar Feige are used to measure the size of the underground economy. Based on ordinary least squares estimates, it is found that the maximum marginal personal income tax rate raises the size of the underground economy. In addition, the size of the underground economy is found to be a decreasing function of both the percentage of tax returns audited and the penalties imposed by the IRS on unpaid taxes.