Tax harmonization and tax competition in the European Union: Lessons from Switzerland

This paper presents empirical evidence on individual income tax competition in Switzerland. Tax competition has some influence on the spread of people with high income over the cantons, and it is partly capitalised in dwelling rents. However, it neither leads to a collapse of public good supply nor makes redistribution by the fiscal authorities impossible. Thus, if tax competition works well in Switzerland there is no reason why it should have disastrous effects in a future European Union.     

International tax coordination: regionalism versus globalism

Tax competition for mobile capital can undermine the attempts of governments to redistribute income from rich to poor. I study whether international tax coordination can alleviate this problem, using a general equilibrium model synthesizing recent contributions to the tax competition literature. The model highlights the crucial distinction between global tax coordination and regional coordination. With high capital mobility between the tax union and the rest of the world, the welfare gain from regional capital income tax coordination is only a small fraction of the gain from global coordination, even if the tax union is large relative to the world economy.     

Capital tax competition: bane or boon

This paper reviews potential advantages and disadvantages of capital tax competition. Tax competition may introduce, mitigate, or exacerbate inefficiencies in both the private sector and the public sector. In different models, tax competition may either limit or increase public expenditures and taxes on mobile factors, with differing welfare consequences. We also discuss the implications of tax competition for redistributive policies and for policies dealing with risk, and we identify some of the possible empirical implications of tax competition.     

The effects of vertical and horizontal incentives on local tax efforts: evidence from China

Tax effort is a measure of a government’s effort to collect taxes. This study explores what impacts both vertical and horizontal incentives have on local governments’ tax efforts in China. For consistency with the literature, we first include typical economic and institutional factors in our analysis. We find that the effects of economic factors on local tax efforts are significant, but the effects of institutional factors tend to be weak. Fiscal decentralization, as a vertical incentive, has a significantly positive effect on tax efforts at the provincial level. Meanwhile, fiscal interaction, as a horizontal incentive, is also taken into account in a spatial specification to explain tax competition among local governments. The results show that local tax effort in China also depends on the horizontal incentive. Hence, to improve local tax effort, the central government should let the locals have more autonomy in collecting taxes and evaluate local tax effort by referring to tax collection in adjacent provinces simultaneously.     

Income shifting, investment, and tax competition: theory and evidence from provincial taxation in Canada

We study corporate income taxation when firms operating in multiple jurisdictions can shift income using tax planning strategies. Because income of corporate groups is not consolidated for tax purposes in Canada, firms may use financial techniques, such as lending among affiliates, to reduce subnational corporate taxes. A simple theoretical model shows how income shifting affects real investment, government revenues, and tax base elasticities, depending on whether firms must allocate income to provinces or not. We then analyze data from administrative tax records to compare the behavior of corporate subsidiaries that may engage in income shifting to comparable firms that must use the statutory allocation formula to determine their taxable income in each province. The evidence suggests that income shifting has pronounced effects on provincial tax bases. According to our preferred estimate, the elasticity of taxable income with respect to tax rates for “income shifting” firms is 4.9, compared with 2.3 for other, comparable firms.     

Tax competition with heterogeneous firms

A model of tax competition in which firms earn rents is described. The size of these rents, coupled with the degree to which the firms are foreign-owned, determine the equilibrium tax rates. The existence of rents significantly alters some generally accepted results involving the possibility of a Pareto-improving common tax rate and the underprovision of publicly provided goods.     

欧盟碳税政策的经验与启示

随着全球气候变化带来的恶劣影响进一步加剧,减缓和适应气候变化已成为世界各国所关心的重要议题。越来越多的国家采取了各种温室气体减排措施,征收碳税就是其中之一。目前欧盟一些国家已实行碳税,并取得了一定的效果。以芬兰、丹麦、瑞典和英国为例,对这四个国家的碳税情况进行比较分析,以期对中国有所启示。     

Tax principles and tax harmonization under imperfect competition: A cautionary example

This paper shows that under imperfect competition, the welfare effects of indirect tax harmonization may depend crucially on whether taxes are levied by the destination or the origin principle. In a standard model of imperfect competition, while harmonization always makes at least one country better off, and may be Pareto-improving, when taxes are levied under the destination principle (which currently applies in the European Union), harmonization of origin-based taxes (as recently proposed by the European Commission) is certain to be Pareto-worsening when the preferences in the two countries are identical, and is likely to be so even when they differ.     

Identifying peers in international tax competition

Multinational companies (MNCs) have historically used corporate subsidiaries to isolate income earned in lower-taxed jurisdictions from tax in a higher-rate home country. This planning technique has been long accepted as a strategy to lower the MNC’s effective tax rate and maintain shareholder value. A recently study, however, demonstrates that this is an inefficient, and possibly inappropriate, strategy. This article conducts a comprehensive empirical benchmarking analysis by applying cluster analysis to empirically identify peer groups of MNCs operating in the pharmaceutical industry. We find that most firms consistently fall into the same cluster, providing evidence that income shifting can be benchmarked by industry sector. We also find special cases where firms should be excluded from the benchmark.     

Globalisation, capital mobility and tax competition: theory and evidence for OECD countries

Are the predictions of tax competition theory wrong? While the tax competition literature predicts that taxes on income from capital decrease with increasing globalisation, past empirical studies on various data find contradicting evidence. By using different data and additional elements of economic theory, this paper aims to challenge the empirical contributions. For a panel of 14 OECD countries and for the period 1967–1996, we find that globalisation has indeed a negative and significant impact on corporate taxes. Furthermore, globalisation tends to raise labour taxes and social expenditures. As a consequence, the so-called “efficiency” and “compensation” hypotheses of globalisation are not competing, but rather, both appear to apply at the same time. Efficiency has an impact on the tax-mix, whereas compensation is provided through increased social expenditures.     

Corporate tax competition: A meta-analysis

Do jurisdictions compete over corporate taxes? The extent of uncooperative strategic government interactions in corporate tax policy remains unclear, because the results reported in relevant econometric studies vary considerably. This paper applies meta-analysis and meta-regression methods to a novel dataset consisting of 604 observations on corporate tax competition reported in 33 primary studies. The results point to the presence of corporate tax competition effects, and there is no consistent evidence for publication selection bias. The analysis, however, reveals that several data and specification choices systematically affect the results reported in the literature: the choice of the weighting scheme applied in estimating the corporate tax function and details of the econometric estimation strategy are significant when it comes to explaining variation in reported results. Furthermore, we find that accounting for partisan politics and country size matters.     

Tax progressivity, income distribution and tax non-compliance

This article examines the determinants of tax non-compliance when we recognise the existence of an imperfectly competitive “tax advice” industry supplying schemes which help taxpayers reduce their tax liability. We apply a traditional industrial organisation framework to model the behaviour of this industry. This tells us that an important factor determining the equilibrium price and hence, the level of non-compliance, is the convexity of the demand schedule. We show that in this context, this convexity is affected by the distribution of pre-tax income, the progressivity of the tax-schedule and the way in which monitoring and penalties vary with income. It is shown that lower pre-tax income inequality as well as a less progressive tax code may cause more tax minimisation activities. Therefore, the frequently advocated policy of reducing the highest tax rate may fail as a policy directed at improving tax discipline. One way of offsetting the possible harm to tax compliance from a less progressive tax could be an adjustment of the penalty and monitoring functions.     

横向税收竞争的环境效应研究

在我国,提供公共产品的事权多在地方。在财力有限的情况下,为了较好地履行职责,地方政府不得不通过参与激烈的税收竞争来增强本地的经济和财政实力。文章通过分析地方税收竞争的诱因,提出地方政府之间存在激烈的横向税收竞争也会影响环境污染的理论推断,并依经济发展水平的不同,将全国分为东、中、西部三个地区,尝试探讨了不同地区环境污染的相似性及差异性。运用面板数据分析地方政府之间横向税收竞争对辖区环境质量的影响情况,结果发现,在横向税收竞争的作用下,不同地区在工业三废排放方面既存在一定的相似性又有所差异。建议采取必要的对应措施解决地方政府之间横向税收竞争所造成的不良环境后果。     

Strategic delegation in asymmetric tax competition

This study examines asymmetric tax competition under representative democracy systems. The findings show that the degree of asymmetry between countries affects the result of elections in each country, where the citizens select a policy‐maker to set a tax rate for the country. In particular, under certain conditions, a decisive voter in the election can select a citizen whose share of the country's capital is higher than the decisive voter's own share.     

Consumption tax revenue and personal income tax: analytical elasticities under non-standard tax structures

This article models the elasticity of consumption taxation faced with changes in disposable income. Its calculation makes clear the importance of the design of the personal income tax and of the changes caused to the consumption of taxpayers. The modelling is performed for both individual taxpayers and the population as a whole.     

Preferential trade agreements and tax competition for foreign direct investment

This paper examines how free-trade agreements and customs unions affect the location of foreign direct investment (FDI) and social welfare, taking into account that governments may adjust taxes and external tariffs to compete for FDI. Conditions are identified under which a free-trade agreement leads to FDI and under which this improves welfare. The welfare effect is shown to depend on the relative size of efficiency gains in production and government revenue losses due to tax competition. A free-trade agreement may fail to induce welfare-improving FDI, creating a role for a customs union.     

Symmetric tax competition and lobbying within federations

The present paper deals with the question of whether tax harmonization and federal taxation increase welfare in a symmetric tax competition framework with heterogeneous individuals and lobbying. A model closely related to the approach of Lai (2010) is linked to externalities that are familiar from conventional public finance. The observed deviations from efficient taxation are derived from the interplay of four externalities, which can be divided into two groups: externalities occurring due to tax competition and externalities which are caused by lobbying. Whether or not the centralization of tax competences is useful depends mainly on the relative sizes of the competition-induced and lobbying-induced externalities.     

The political economy of capital market integration and tax competition

This paper investigates the effect of capital market integration (CMI) on capital taxes in a political economy framework in which policy is influenced by lobbying of interest groups. CMI increases the efficiency cost of the capital tax, which introduces incentives to reduce the tax rate, but also reduces lobbying by owners of capitalists, which introduces countering incentives to increase the tax rate. CMI can therefore result in a higher capital tax rate. When the market share of each country is small, CMI may increase government supply of public goods and enhance efficiency, which implies that, in the presence of policy endogeneity through lobbying, decentralized policymaking can be more efficient than centralized policymaking.     

The Proposals for a European Tax on CO2 and Their Implications for Intercountry Distribution

This paper analyzes the advantages andimplications of the implementation of aEuropean tax on carbon dioxide emissions as anown resource of the EU and it focuses on itseffects on intercountry distribution. Incontrast to a harmonized tax, which would onlyhave distributive effects within each memberstate, a tax collected at European scale wouldalso have important distributive effects amongdifferent countries. These effects would alsodepend on the use of tax revenues. The paperinvestigates through a simple empiricalanalysis the distributive effects among themember states of three tax models: a pureCO₂ model; a 50%/50% energy-CO₂model and a CO₂ model with a burden onnuclear power.     

Accounting for the family in European income tax systems

Tax systems are expected to achieve many things at once andthis paper discusses the trade-offs involved in attempting toreconcile conflicting aims. It surveys the various instrumentsthat are used to take account of marriage and the presence ofchildren and describes the current systems in the 15 EuropeanUnion countries. The impact of alternative tax treatments ofthe family 'borrowed' from other countries is examined for theUK, using the tax-benefit microsimulation model, POLIMOD. Thepaper explores the implications of the alternatives for thetax paid by families of different types and for the work incentivesof individuals in different family situations.