Laffer strikes again: Dynamic scoring of capital taxes

We set up a neoclassical growth model extended by a corporate sector, an investment and finance decision of firms, and a set of taxes on capital income. We provide analytical dynamic scoring of taxes on corporate income, dividends, capital gains, other private capital income, and depreciation allowances and identify the intricate ways through which capital taxation affects tax revenue in general equilibrium. We then calibrate the model for the US and explore quantitatively the revenue effects from capital taxation. We take adjustment dynamics after a tax change explicitly into account and compare with steady-state effects. We find, among other results, a self-financing degree of corporate tax cuts of about 70–90% and a very flat Laffer curve for all capital taxes as well as for tax depreciation allowances. Results are strongest for the tax on capital gains. The model predicts for the US that total tax revenue increases by about 0.3–1.2% after abolishment of the tax.     

寻求更有效的财政政策——中国宏观经济分析

宏观财政政策是一种公共物品 ,其有效性的标准是 ,在实现政府利益的同时 ,能够增进社会的福利。面临通货紧缩 ,政府将继续实施以财政政策为主导的扩张性宏观政策 ,在财政支出空间有限的情况下 ,就要选择能够作大投资乘数 ,提高市场效率的措施 ;同时要考虑调整税制结构 ,改变对投资征高税的税制 ,逐步变生产型增值税为收入型增值税和消费型增值税 ,并通过把内资企业税负降至外资企业的水平 ,一方面提高企业的利润预期 ,另一方面 ,消除税负不公 ,提高社会经济效率和减少资本外流 ;在运用国债政策时 ,既要重视国债的发行和使用 ,更要重视国债的交易和流通 ,推进我国金融市场的发育和功能的发挥以及促进公用事业的企业化 ,转换资源配置方式 ,从政府配置转向市场配置 ,从集中配置转向分散配置。总之 ,在体制转轨时期 ,推行一种与市场化改革相结合的财政政策 ,把短期的政策操作和长期的制度调整结合起来 ,实现政策和体制联动。     

Time-consistent taxation in a dynastic family model with human and physical capital and a balanced government budget

Abstract .  This paper analyzes optimal, time consistent taxation in a dynastic family model with human and physical capital and with a balanced government budget. When tax revenue is used for publicly provided consumption or lump-sum transfers, leisure would be higher than its social optimum. Pareto optimal taxation requires taxing capital income more heavily than labour income and subsidizing investment at the same rate of the tax. Also, it requires either subsidizing labour at the same rate as a consumption tax or subsidizing consumption at the same rate as a labour income tax, and hence it is not a practical guide to policy. Further, a consumption tax, or equivalently a uniform income tax with investment subsidies at the same rate, can be improved on by taxing capital income more heavily than labour income.     

Does fiscal redistribution discourage local public investment?

This paper studies the determinants of regional (oblast‐level) public investment in transitional Russia, focusing on the effects of federal fiscal redistribution. A model of local government expenditure in the presence of regional asymmetries shows that revenue redistribution from wealthy to poor regions discourages local public investment. Random‐ and fixed‐effects estimation of regional panel data for 1994–97 supports the existence of a disincentive effect from fiscal redistribution on regional public investment, which varies according to a region's federal status and wealth: non‐republics have a lower propensity to invest out of transfers than out of own income, as do regions with above‐median per capita income. Republics reduce public investment more than current spending in response to higher federal taxation. Russia's ‘asymmetrical federalism’ thus creates different fiscal incentives for different types of regions.     

Some aspects of the taxation of capital gains

The analysis of the effects of capital gains taxation requires a careful modelling both of the details of the tax code and the imperfections in the capital market. Under the standard assumptions concerning perfect capital markets and under the standard idealizations of the tax code, there are several strategies by which rational investors can avoid note only all taxes on their capital income, but also all taxes on their wage income; these strategies leave individuals' consumption and bequests in each state of nature and at each date unchanged from what they would have been in the absence of taxes. Although certain detailed provisions of the tax code may limit the extent to which rational investors can avail themselves of these tax avoidance activities, there are ways, in a perfect capital market, by which the effects of these restrictions can be ameliorated. Accordingly, any analysis of the effects of capital taxation must focus on imperfect capital markets.If individuals face limitations on the amounts which they can borrow and/or if there are limitations on short sales, then under some circumstances there is a locked-in effect (individuals do not sell securities which they would have sold in the absence of taxation); but under other circumstances individuals are induced to sell securities that they otherwise would have held, in order to take advantage of the asymmetric treatment of short-term losses and long-term gains. A policy of realizing gains as soon as they become eligible for long term treatment dominates the policy of postponing the realization of capital gains, provided the gains are not too large.A simple general equilibrium model is constructed within which it is shown that the taxation of capital gains may increase the volatility of asset prices, and lead individuals not to trade when they otherwise would. While the analysis casts doubt on the significance of the welfare losses resulting from these exchange inefficiencies, there are circumstances in which the tax leads to production inefficiencies, e.g. terminating projects at other than the socially optimal date.Finally, we argue that the focus of some recent policy debates on the short-run revenue impact of a decrease in the tax rate on capital gains is misplaced: even when the short-run revenue impact is positive, consumption may increase (thus exacerbating inflationary pressures) and private savings may decrease (thus leading to a lower level of investment in the private sector). Moreover, there is some presumption that the long-run revenue impact is negative.Our analysis has some important implications for empirical research. In particular, it suggests that the impact of the tax is not adequately summarized by a single number, such as the ‘effective tax rate’ representing the average ratio of tax payments to capital gains. Moreover, the impact of the tax cannot be assessed by looking only at reported capital gains and losses.     

The general equilibrium effects of fiscal policy: Estimates for the Euro area

This paper describes a dynamic stochastic general equilibrium model featuring a fraction of non-Ricardian agents in order to estimate the effects of fiscal policy in the Euro area. The model takes into account distortionary taxation on labor and capital income and on consumption, while expenditures are broken down into purchases of goods and services, compensation of public employees and transfers to households. A newly computed quarterly data set of fiscal variables is used. Our results point to the prevalence of mild Keynesian effects of public expenditures. In particular, although innovations in fiscal policy variables tend to be rather persistent, government purchases of goods and services and compensations for public employees have small and short-lived expansionary effects on private consumption, while innovations in transfers to households show a slightly more sizeable and lasting effect. The effects are more significant on the revenue side: decreases in labor income and consumption tax rates have sizeable effects on consumption and output, while a reduction in capital income tax favors investment and output in the medium run. Finally our estimates suggest that fiscal policy variables contribute little to the cyclical variability of the main macro variables.     

Fiscal harmonization in the European Union with public inputs

Fiscal harmonization among the European Union member states is a goal involving major difficulties for its implementation. Each country faces a particular trade-off between fiscal revenues generated by taxation and the productive efficiency loss induced by their respective tax code. This paper provides a quantitative analysis of these trade-offs for a number of the European Union (EU-15) member states using a dynamic general equilibrium model with public inputs. Calibration of the model for the EU-15 member states provides the following results: i) the maximum tax revenue level is relatively far from the current tax levels for most countries; ii) the cases of Sweden, Denmark and Finland are anomalous, as productive efficiency can be gained by lowering tax rates without affecting fiscal revenues; iii) in general, countries would obtain efficiency gains without changing fiscal revenues by reducing the capital tax and increasing the labor tax; and iv) capital tax harmonization to the average capital tax rate can be done with quite small changes in both fiscal revenues and output for most countries.     

Dynamic scoring of tax reforms in a small open economy model

We examine dynamic revenue effects of a permanent tax cut on labor and capital income using a small open two-sector dynamic general equilibrium model. We use a dynamic scoring technique to calculate long-run as well as transitional effects on fiscal revenue when a tax cut is financed by either a lump-sum tax or consumption tax. We show that the revenue loss from an income tax cut becomes substantially smaller when agents can use international financial markets compared to the case of the closed economy. Responses of tradable and nontradable sectors to the capital income tax cut display a stark contrast in both long-run equilibrium and transitional dynamics due to different factor intensities. Capital income tax cut in the tradable sector is the most efficient policy instrument in terms of minimizing fiscal revenue loss. These simulation results suggest that fiscal sustainability issue when implementing a tax cut could be overstated.     

A Synthesis of Contour and Flexible Wage Hypotheses

Economic instability has risen in emerging economies after capital account liberalization. A more progressive income tax policy could offer a stabilizing alternative. It could result in more revenue, more countercyclical policy, and more income equality and thus more stable demand growth. We test the effects of progressive taxes on stability using univariate and multivariate analyses based on panel data for emerging economies from 1982 to 2002 and compare those to the effects of a value added tax (VAT). We also consider possible constraints on tax policy design, such as government spending, international tax competition, and openness. Progressive taxes are associated with greater income equality and a higher likelihood of countercyclical fiscal policies. The potential benefits from progressive income taxation, though, are lower with VAT. Tax policy is also constrained by government expenditures and openness, but not by lower corporate taxes, suggesting that all income tax rates are constrained by openness.     

Capital income taxation in a growing world economy

This paper deals with dynamic adjustment in large economies to changes in the rate of capital income taxation or in the rate of investment tax credit in one country. The framework applied in the paper is a continuous-time, overlapping generations model with two countries. It features population growth and debt non-neutrality. We address impact and steady state effects of capital income tax and investment subsidy changes in the home country on consumption per capita, the capital intensity, and the per capita net foreign asset position in both countries. We also briefly consider individual welfare consequences of these policies.     

THE FISCAL DIVIDEND MYTH OF AN INCOME/GST TAX SWITCH*

Reaping a windfall fiscal dividend from the taxation of the ‘underground’ economy's expenditures on ‘legitimate’ commodities is often seen as a significant advantage for a goods and services tax (GST) over an income tax. This claim ignores the changes in prices in the underground economy which would arise from the introduction of a GST. Employing a general equilibrium model which allows for tax evasion, we show that any ‘dividend’ arising from a change in the income tax/GST mix is equivalent to a rise in the income tax rate without a GST.     

基于财政视角的收入分配问题研究

财政收入和支出对居民收入的影响是直接和巨大的。不合理的财政收入和支出会阻碍居民收入增长,加重居民支出负担。针对这一问题,需采取提高国有企业资本收益收取比例、完善分税制度、降低税收和减少收费、完善各层次的分配体制、加大各种补贴力度和拓宽居民收入渠道等措施,从而保证居民收入的合理增长和公共财富的合理分配。     

Optimal fiscal policy in the Uzawa-Lucas model with externalities

Summary. This paper devises a fiscal policy by means of which the first-best optimum equilibrium is attained as a market equilibrium in the Uzawa-Lucas model when average human capital has an external effect on productivity. The optimal policy requires the use of a subsidy to investment in human capital which can be financed by a tax on labor income. Lump-sum taxation is not required to balance the government budget either in the steady state or in the transitional phase. Physical capital income should not be taxed. Alternatively, the optimal growth path can be attained by means of a subsidy to human capital. Received: March 21, 2002; revised version: September 4, 2002 RID="*" ID="*" Financial support from the Spanish Ministry of Science and Technology through PNICDYIT grant SEC2002-03663 is gratefully acknowledged.     

Investment scaling up and the role of government

This article studies the fiscal and welfare implications of a scaling up of public investment when the government is subject to inefficiencies on the spending and on the tax collection side. In our simulations, the scaling up of public investments results in higher long-run output and consumption levels but requires a fiscal stabilization package in order to preserve fiscal sustainability. The effects on consumers’ welfare after the fiscal adjustment are nontrivial. Our welfare analysis shows that consumers’ welfare is increased when the government smooths the fiscal adjustment via higher borrowing and not through an increase in taxation. Moreover, the comparison between several stabilization packages via tax adjustment shows that higher welfare is achieved when the government relies mostly on taxation of capital as this allows higher levels of consumption. Lower fiscal costs that do not undermine fiscal sustainability can however be achieved if the government manages to reduce inefficiency in tax collection. Finally, we consider a change in the trade regime that causes a decline in revenues. We find that the higher fiscal burden required to preserve fiscal sustainability would completely wipe out the welfare gain of higher public investments.     

税收与收入分配:基于发展中国家个人所得税的思考

对于税收分配作用的不同理解和看法导致了税制设计方案的差异。发达国家普遍采用的累进综合个人所得税在发展中国家里面临着更高的管理成本、遵从成本、经济效率成本和政治成本,因而可能不是发展中国家实现收入分配职能的最优策略。对于中国而言,未来个人所得税的改革方向应当是在合理确定劳动所得和资本所得税负水平的基础上,根据纳税人家庭人口数量及就业状况对费用减除标准加以细分。在商品税方面,对日常生活必需品和农业生产资料免征增值税,将更多奢侈品纳入消费税的征收范围,并对与低收入群体日常生活密切相关的服务项目免征营业税。     

Foreign direct investment under oligopoly: Profit shifting or profit capturing?

In this paper a model of taxation of foreign source corporate income is developed when the output market is not perfectly competitive. Profit shifting policies, similar to those in the new trade literature, are also present in the case of foreign direct investment (FDI). There are, however, important differences to the new trade theory since in case of FDI, (i) corporate taxation and double taxation relief are the policy instruments rather than output or revenue taxes, (ii) countries are not symmetric in the sense that the host country has the first right to tax the multinational's profit and the home country reacts by providing double taxation relief, and (iii) output but not corporate taxation is specific to imperfectly competitive industries. It is argued that (a) variants of a tax credit are analogous to export subsidies, (b) when the home country operates a tax credit system the host country's incentive to capture the multinational's profit is bounded under imperfect competition, (c) when the host country offers a tax holiday the home country should imitate this policy, and (d) in the presence of perfect competitive industries, double taxation relief is a good instrument to target imperfectly competitive industries.     

International corporate taxation and U.S. multinationals' behaviour: an integrated approach

Abstract .  This paper explores the effects of corporate taxation on U.S. capital invested abroad and on tax planning practices. The econometric analysis first indicates that investment is strongly influenced by average tax rates, with a magnified impact particularly for low-tax rates, implying that the attractiveness of low-tax countries is not weakened by anti-deferral rules and cross-crediting limitations. Further explorations suggest that firms report higher profit, higher Subpart F income, and are less likely to repatriate dividends when they are located in low-tax jurisdictions. Finally, when the role of effective transfer pricing regulations is estimated, it appears that low degrees of law enforcement are associated with higher income shifting.     

Public investment,taxation, and long-run output in economies with multi-level governments

This paper examines the dynamic effects of taxation and investment on the steady state output level of an economy. A simple neoclassical growth model with different tiers of government is developed. The initial focus is on governments that aim to maximise their citizens' welfare and economic performance by providing consumption goods for private consumption and public capital for private production. It is shown that a long-run per capita output maximising tax rate can be derived and that there also exists an optimal degree of fiscal decentralisation. The analysis then extends to the case where governments attempt instead to maximise their own tax revenue to fund expenditures which do not contribute to the utility of their citizens. Three different cases of taxation arrangement are considered: tax competition, tax sharing, and tax coordination. The modeling shows that intensifying tax competition will lead to an increase in the aggregate tax rate as compared to the cases of sharing and coordination amongst governments. These tax rates are both higher than the long-run per capita output maximising rate that was implied under the welfare maximising government scenario.     

Taxation of Housing: Killing Several Birds with One Stone

High and sustained housing-price growth has been observed in many countries over recent decades. In Norway, real housing prices increased by 200 percent between 1990 and 2015, and many households have high debts. In addition, maintaining the welfare state as the population ages likely involves higher taxes in the coming years. Norway taxes housing leniently. Increased taxation of housing is a way of killing several birds with one stone: generating tax revenue, moderating housing prices, and increasing efficiency. In this paper, I use a microsimulation model to determine the effects on revenue and distribution of a hypothetical tax change where housing is taxed as other capital assets. I take into account the effect of taxation on housing demand, using a simple user-cost model. This housing tax would increase personal tax revenue by 11 percent and make the tax system more progressive. Housing prices would fall by 20 percent.     

The Income Splitting Method: Is it Good for Both Marriage Partners?

Abstract. This paper analyzes how deviating from individual taxation affects married couples. The focus is on time allocation, on investment in family‐specific human capital and on distribution of income within the family. Two insights are discussed in detail. First, the distribution of tax‐reduction gains due to the income splitting system depends on whether the family has been started or not. After marriage, joint taxation increases redistribution among family members. Second, although joint taxation reduces the tax burden of the family, it might harm the marriage partner that is more productive in household production provided that potential marriage partners foresee the effects of joint filing on the time allocation within the family.