From the global income tax to the dual income tax: Recent tax reforms in the Nordic countries

The paper discusses the recent drive toward a system of dual income taxation (DIT) in the Nordic countries. The pure version of this system combines progressive taxation of labor and transfer incomes with a proportional tax on income from capital at a level equal to the corporate income tax rate. The paper considers the motives for the introduction of this new income tax system, ranging from abstract theoretical arguments to very pragmatic considerations. While the Nordic DIT system violates the principles of the conventional personal income tax, it is argued that it may in fact be more in line with the philosophy of a true Haig-Simons comprehensive income tax. It is also suggested that the DIT system may cause fewer distortions to resource allocation than the conventional income tax. On the debit side, the paper points out several practical problems of taxing income from small enterprises under the differentiated income tax.     

Optimal Fiscal Policy with Consumption Taxation

We characterize optimal fiscal policies in a general equilibrium model with monopolistic competition and endogenous public spending. The government can tax consumption, as alternative to labor income taxes. Consumption taxation acts as indirect taxation of profits (intratemporal gains of taxing consumption) and enables the policymaker to manage the burden of public debt more efficiently (intertemporal gains of taxing consumption). We show analytically that these two gains imply that the optimal share of government spending is higher under consumption taxation than with labor income taxation. Then, we quantify numerically each of these gains by calibrating the model on the U.S. economy.     

Optimal taxation and redistribution in an OLG model with unemployment

This paper concerns redistribution via nonlinear income taxation in an overlapping generations model with two ability-types. We assume that the wage rates are determined by bargaining between unions and firms, meaning that the equilibrium is characterized by involuntary unemployment. We show that the policy instruments that are used to calculate the marginal labor income tax rate for each ability-type give rise to intertemporal tax base effects. In addition, since the relationship between the employment and the capital stock implies intertemporal production inefficiency at the second best optimum, imperfect competition in the labor market may itself justify capital income taxation.      

Taxation and skills investment in frictional labor markets

This paper examines the effects of wage taxation and corporate income taxation on training investment in frictional labor markets. Because of labor market frictions, the wage structure is compressed and workers do not capture the entire return from their skills. As a result, both firms and workers have incentives to support part of the costs of training investments. The analysis shows that when decisions to invest in training are made by firms and workers acting cooperatively, a wage tax increases the level of investment in skills whereas a corporate income tax decreases it. In this case, the introduction of a small wage tax unambiguously increases efficiency. The effects of both types of taxes on training are reversed when investment decisions are taken by firms alone. In any case, a corporate income tax is not neutral with respect to decisions to invest in skills even if the full cost of investment is deducted from taxable income in the period when it is incurred and the tax system provides full loss offset.     

Deferred Shareholder Taxation – Implementing a Neutral Business Tax in the European Union

This paper proposes the replacement of the corporate income tax by shareholder-based capital income taxation. Our proposal would guarantee investment neutrality of taxation and reduced tax compliance costs. The proposal is based on the S-base cash flow tax. Under the S-base tax, transactions within the corporate sector are not taxable and only transactions between shareholders and corporations are subject to tax. In contrast to existing S-base cash flow tax systems, tax deductibility of investments is deferred. Rather, the acquisition costs and capital endowments are compounded at the capital market rate and are set off against future capital gains. Dividends and withdrawals are fully taxable at the shareholder level. Because of the deferral of the tax payments our proposal is called ‘Deferred Shareholder Tax’ (DST). The DST exhibits the same neutrality properties as the traditional cash flow tax. Moreover, the compounded inter-temporal credit method ensures that it is neutral with respect to the decision between domestic and foreign investment. To increase acceptance of the DST, current taxpayers’ documentation requirements will be reduced rather than extended. Our proposal could be realised in a single EU country or in all member states of the EU.     

二元所得税的兴起:国际经验及启示

二元所得税作为一种对资本所得与劳动所得分离课税的个人所得税新模式,已被越来越多的国家所尝试。围绕二元所得税,理论界的争议主要集中于对资本所得征税的效率性、公平性、管理性和普及性等方面。对我国而言,既要反思劳动所得和资本所得的差异,明确个人所得税改革的基本思路与方向,又要采取渐进主义的改革策略,设计二元所得税的短期、中期和长期目标,在条件成熟时予以尝试。     

Is Prescott right? Welfare state policies and the incentives to work, learn, and retire

This paper bolsters Prescott’s (Fed. Reserve Bank Minneap. Q. Rev. 28(1):2–13, 2004) claim that high taxes are responsible for lackluster labor market performance in Continental European countries. We develop a life-cycle model with endogenous skill formation, endogenous labor supply, and endogenous retirement. Labor taxation distorts not only labor supply, but also education and retirement decisions. Actuarially unfair pensions further exacerbate labor tax distortions on retirement. Education subsidies can nevertheless cushion the adverse impact of taxation on skill formation. Feedbacks between education, labor supply, and retirement are important. The model is simulated with realistic behavioral elasticities that are consistent with microeconometric evidence. If, besides labor supply, also learning and retirement are endogenous, the uncompensated (compensated) elasticity of the tax base equals 0.46 (0.85), which is more than twice as large as the standard uncompensated (compensated) labor supply elasticity of 0.18 (0.40). Furthermore, life-cycle interactions between education, working, and retirement are quantitatively important and the interactions raise all behavioral elasticities substantially. For example, the uncompensated labor supply elasticity increases with one-half due to life-cycle interactions (to 0.26). We demonstrate that low European labor supply can be fully explained by taxation without relying on unrealistically high labor supply elasticities. Reducing labor market distortions, cutting benefit levels, lowering tax rates, and making (early) retirement actuarially more fair, therefore, boosts labor supply, delays retirement, and stimulates skill formation. In addition, high education subsidies are needed in large welfare states to offset explicit and implicit tax burdens on human capital investment.      

Political Sustainability and the Design of Environmental Taxes

This paper studies the issue of political support for environmental taxes. The environmental tax is determined by majority voting, given a refund rule that specifies the allocation of tax proceeds. The refund rule is chosen by a welfare-maximizing constitutional planner. We show that: (i) The equilibrium tax rate is increasing in the proportion of tax reductions based on wage incomes. (ii) If labor and capital income taxes are reduced in the same proportion, to keep the government's budget balanced, majority voting yields a rate of environmental taxation that is lower than the optimal (Pigouvian) level. (iii) To mitigate this negative bias, the government reduces wage taxes by a higher proportion than capital income taxes. (iv) The final outcome will either be the Pigouvian tax or else all reductions will be given in wage taxes. This depends on individuals' preferences for the polluting good as well as wage and capital income distributions.     

On taxing capital income with income shifting

We examine a linear capital income tax and a nonlinear labor income tax in a two-type model where individuals live for two periods. We assume that taxes are paid only in the second period in which the agents receive both labor and capital income and may shift income from labor to capital. The two types of individuals may differ with respect to wage rate and initial resource endowments. In the absence of income shifting, endowment variation motivates a capital income tax which would not exist where there is pure wage rate variation. In the latter circumstance, income shifting would indeed establish a case for a capital income tax while adding variation in resource endowments would ambiguously affect the case. The asymmetric information case for a capital income tax must be traded off against distortionary effects not only on savings, but also on labor as an agent may earn labor income which is reported and taxed as capital income.      

Slowing Fossil Fuel Extraction: A Role for Taxation of Exports,Capital Gains and Interest Income

This paper develops a model of a growing open economy rich in non‐renewable resources, the extraction of which negatively impacts domestic productivity and whose sector competes with final production for capital. We analyse how tax rates on capital gains and interest income and the time trend of an export revenue tax rate could slow the extraction of resources for export. We find that taxing capital gains and interest income at the same rate and setting an export revenue tax rate to decline at the marginal social cost of extraction would defer extraction. An export revenue tax rate need not fall over time to curb depletion if capital gains are taxed at a lower rate than interest income, which is second best to taxing asset returns at the same rate when the resources sector competes for capital.     

Income Taxation and Finite Horizons in a Human Capital Model

We address the issue ofcapital vs. labor income taxation in an overlapping generationsmodel with a positive externality in the human capital production.We compare the performance of the economy in the steady stateunder different tax policies. Three results are obtained. First,the size of the tax revenue required strongly affects the optimal(welfare maximizing) capital-labor income tax portfolio. Inparticular, a zero physical capital income tax rate need notbe optimal. Second, the way in which the finite life cycle issplit between the working and the retirement period also matters.And third, the size of the externality in the human capital productionalso affects the optimal income tax rate mix.     

Environmental Policy,Efficient Taxation and Unemployment

In this paper, I consider environmental policy as part of a mixed tax problem with a general income tax and linear commodity taxes. I assume that the wage rate is determined by bargaining between unions and firms. The results show that the change in the number of employed persons, following a change in the use of a tax instrument, affects the optimal tax structure via two channels; (i) it makes the tax revenues available for public expenditures more or less costly to collect, and (ii) it affects the aggregate demand for the good that causes the environmental damage. This means that the use of taxation to counteract the labor market imperfection is not easily separated from the environmental aspects of tax policy.JEL Code: D62, H21, J60     

Labor-dependent capital income taxation

Capital taxation which is negatively correlated with labor supply is proposed. This paper uses a life-cycle model of heterogeneous agents that face idiosyncratic productivity shocks and shows that the tax scheme provides a strong work incentive when households possess large assets and high productivity later in the life-cycle, when they otherwise would work less. The system also adds to the saving motive of prime-age households and raises aggregate capital. The increased economic activities expand the tax base and the revenue neutral reform results in a lower average tax rate. The negative cross-dependence generates a sizable welfare gain in the long-run relative to the tax system that treats labor and capital income separately as a tax base. The reform, however, can hurt the elderly during the transition with a high marginal tax on their capital income.     

Sickness absence and health care in an economic federation

This paper addresses vertical fiscal externalities in a model where the state governments provide health care and the federal government provides a sickness benefit. Both levels of government tax labor income and policy decisions affect labor income as well as participation in the labor market. The results show that the vertical externality affecting the state governments’ policy decisions can be either positive or negative depending on, among other things, the wage elasticity of labor supply and the marginal product of expenditure on health care. Moreover, it is proved that the vertical fiscal externality will not vanish by assigning all powers of taxation to the states.      

Fundamental Tax Reform in The Netherlands

The Netherlands has abolished the tax on actual personal capital income and has replaced it by a presumptive capital income tax, which is in fact a net wealth tax. This paper contrasts this wealth tax with a conventional realization-based capital gains tax, a retrospective capital gains tax with interest on the deferred tax, and a mark-to-market tax which taxes capital gains as they accrue. We conclude that the effective and neutral taxation of capital income can best be ensured through a combination of (a) a mark-to-market tax to capture the returns on easy-to-value financial products, and (b) a capital gains tax with interest to tax the returns on hard-to-value real estate and small businesses.     

Human capital and optimal positive taxation of capital income

This paper analyzes optimal linear and non-linear taxes on capital and labor incomes in a life-cycle model of human capital investment, financial savings, and labor supply with heterogenous individuals. A dual income tax with a positive marginal tax rate on not only labor income but also capital income is optimal. The positive tax on capital income serves to alleviate the distortions of the labor tax on human capital accumulation. The optimal marginal tax rate on capital income is lower than that on labor income if savings are elastic compared to investment in human capital, substitution between verifiable and non-verifiable inputs in human capital formation is difficult, and most investments in human capital are verifiable so that education subsidies can directly reduce the tax wedge on learning. Numerical calculations suggest that the optimal marginal tax rate on capital income is substantial.     

Optimal income taxation and social norms in the labor market

This paper concerns optimal income taxation in a two-type model extended to allow for social interaction and social norms in the labor market. One norm refers to “normal behavior” with respect to work hours (the hours of work norm), whereas another means that “one should earn one’s living by working” (the participation norm). The results show how the hours of work norm gives rise to a corrective motive for using income taxation. We also show how the interaction between the hours of work norm and the private incentive to participate in the labor market (which reflects the participation norm) gives rise to an employment motive for using the income tax.     

Changes to Income Trust Taxation in Canada: Investor Reaction and Dividend Clientele Theory

Abstract:  This paper explores the relationship between tax-induced dividend clientele theory and the recent changes to the taxation of income trusts in Canada. On October 31, 2006, the Canadian government announced the Tax Fairness Plan ( TFP ) calling for the elimination of the considerable tax advantage enjoyed by income trusts. Generally, distributions from income trusts are now taxed at rates comparable to those imposed on corporate dividends. We examine market reaction to the  TFP  to address three issues: first, whether the valuation effect of a dividend tax increase is consistent with the traditional or the new view of dividend taxation; secondly, whether the market reaction to tax increases has a differential impact on firm value that is related to the tax preferences of taxable, tax-exempt, and foreign investor tax clienteles; and thirdly, whether firms change their dividend policies in response to the preference of institutional investors (tax-based dividend policy effect) or whether institutional investors are sorting themselves across firms based on their dividend policies (investor sorting effect). Our results provide strong evidence as follows. First, the valuation effect in reaction to the  TFP  announcement is consistent with the traditional view of dividend taxation – i.e. that taxes on dividends reduce the net return to investors, increase the firm's cost of capital and lower the firm's ability to access capital markets, thereby discouraging investment and savings. Secondly, we saw that trusts with a larger percentage of their units held by tax-exempt, low-tax, and foreign investors had a higher decline in value when compared with trusts held mostly by ordinary taxable investors. These results support dividend tax clientele theory. Finally, we observed changes in institutional investor clienteles consistent with the investor sorting effect.     

基于一体化的视角看欧盟税收体系的结构问题与改革取向

欧盟的一体化进程在向各国提出新的税收课题的同时,也使得各国原有的税收问题进一步凸显.在税收结构中,劳动税有一个高税收楔子,对消费税的依赖度很高,而公司所得税和不动产税在总税收中却占一个很小的份额.这种税收结构带来了较低的劳动积极性、较大的税收非中性、较弱的税收再分配能力等问题,并有悖于市场统一化和货币单一化的新形势.这一切决定了欧盟税收体系的改革取向.