Vertical versus horizontal tax externalities: An empirical test

We study taxation externalities in federations of benevolent governments. Where different hierarchical government levels tax the same base, one can observe two types of externalities: a horizontal externality, working among governments of the same level and leading to tax rates that are too low compared to the social optimum; and a vertical externality, working between different levels of government and leading to suboptimally high tax rates. Building on the model of Keen and Kotsogiannis [Keen, Michael J., Kotsogiannis, Christos, 2002. Does federalism lead to excessively high taxes? American Economic Review 92 (1) 363–370], we derive a discriminating hypothesis to distinguish vertical and horizontal tax externalities based on measurable variables. This test is applied to a panel data set on local taxes in a sample of Swiss municipalities that feature direct-democratic fiscal decision making, so as to maximize the correspondence with the “benevolent” governments of the theory. We find that vertical externalities dominate – they are thus an observed empirical phenomenon as well as a notable extension to the theory 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.     

Strategic Tax Competition in Switzerland: Evidence from a Panel of the Swiss Cantons

Abstract. Tax competition is discussed as a source of inefficiency in international taxation and in fiscal federalism. Two preconditions for the existence of such effects of tax competition are that mobile factors locate or reside in jurisdictions with – ceteris paribus – lower tax rates, and that taxes are actually set strategically in order to attract mobile production factors. It is well known from studies about Swiss cantonal and local income tax competition that Swiss taxpayers reside where income taxes are low. In this paper, empirical results on strategic tax setting by cantonal governments are presented for a panel of the Swiss cantons from 1984 to 1999. Completing the evidence on Swiss tax competition, income tax rates in cantons are the lower, the lower the tax rates of their neighbors.     

EU regional policy and tax competition

The European Union (EU) provides coordination and financing of trans-European transport infrastructures, i.e. roads and railways, which link the EU member states and reduce the cost of transport and mobility. This raises the question of whether EU involvement in this area is justified by inefficiencies of national infrastructure policies. Moreover, an often expressed concern is that policies enhancing mobility may boost tax competition. We analyze these questions using a model where countries compete for the location of profitable firms. We show that a coordination of investment in transport cost reducing infrastructures within union countries enhances welfare and mitigates tax competition. In contrast, with regard to union-periphery infrastructure, the union has an interest in a coordinated reduction of investment expenditures. Here, the effects on tax competition are ambiguous. Our results provide a rationale for EU-level regional policy that supports the development of intra-union infrastructure.     

The case for international tax co-ordination reconsidered

In a world of high capital mobility, governments may be tempted to undercut each other's capital income taxes to attract capital from abroad. Since such tax competition may have detrimental effects for all countries, European policy makers have debated the introduction of a minimum capital income tax rate within the EU. This paper develops an applied general equilibrium model to estimate the effects of such tax co-ordination on resource allocation, income distribution and social welfare. The model allows for the concern of policy makers that a rise in capital taxes within the EU may cause a capital flight out of Europe. Capital flight will indeed reduce the welfare gain from tax co-ordination within Western Europe, but a positive net gain will remain, although it is likely to be well below 1% of GDP. The gain from co-ordination will be unevenly distributed across European countries, due to differences in economic structures and in the social preference for redistribution. Moreover, even if the median voter's gain from tax co-ordination may be small, the gains for the poorer sections of society may be quite large.     

Impact of Taxes and Benefits on Inequality among Groups of Income Units

This paper analyzes the redistributive impact of the fiscal system and simultaneously explains how each tax and benefit instrument satisfies the principles of vertical and horizontal equity within and across different groups of income units. The decompositions of the redistributive effect are based on new axioms concerning the vertical and horizontal equity of the overall fiscal system, including taxes and benefits. The method is based on pairwise comparisons of income units and the “micro” concepts of income supremacy change, deprivation from reranking, and income distance change. The decomposition results provide more detailed insights into the income redistribution process than is typical in the literature. This is illustrated by an empirical application of the method to the Croatian scheme of personal income taxes and non‐pension social benefits, in which households are divided into two groups, those with and those without children.     

A spatial analysis of provincial corporate income tax responses: evidence from Canada

Abstract.  Using a model of interdependent tax choices, and accounting for equalization entitlements and general transfers, this paper estimates – making use of a spatial econometric framework – corporate income tax-setting functions for all Canadian provincial governments. The results show that there is a statistically significant positive fiscal interaction among a subset of provinces and between all provinces and the federal government. Provincial corporate income taxes are also found to be negatively related to equalization entitlements, general federal transfers, and the federal corporate income tax. A robustness check on the fiscal relationship between Ontario and Quebec verifies the existence of significant bi-directional fiscal interdependencies. The paper also introduces U.S state corporate income taxes as covariates and examines their interaction with Canadian provinces.     

The effects of company taxation in EU accession countries on German FDI1

This article investigates how company taxation affects German foreign direct investment (FDI) in European Union (EU) accession countries. In 2004 and 2007, 10 former socialist eastern European countries joined the EU. Although the EU integration is associated with increasingly favourable investment conditions, accession countries also pursue active strategies to attract foreign firms. In particular, taxes on corporate income have been significantly reduced during the last decade. We analyse whether corporate tax policies of eastern European countries affect three aspects of multinational activity: the location decision, the investment decision and the capital structure choice. The results suggest that local taxes are negatively related to both location and investment decisions. The analysis of the capital structure confirms that higher local taxes imply higher debt‐to‐capital ratios.     

Decentralization and international tax competition

This paper models tax competition between two countries that are divided into regions. In the first stage of the game, the strategy variable for each country is the division of a continuum of public goods between central and regional government provision. In the second stage, the central and regional governments choose their tax rates on capital. A country's decentralization level serves as a strategic tool through its influence on the mix of horizontal and vertical externalities that exists under tax competition. In contrast to standard tax competition models, decentralizing the provision of public goods may improve welfare.     

Fiscal consolidations and electoral outcomes in emerging economies: Does the policy mix matter? Macro and micro level evidence from Latin America

Do voters punish governments that introduce fiscal “austerity” measures? If so, does voter response vary according to the composition of fiscal adjustments? The empirical literature on the political economy of fiscal adjustments, which is mostly OECD-based, argues that consolidations do not have significant electoral consequences. In contrast, we find that voters punish fiscal consolidations at the polls in Latin America. To explain this result, we focus on the way fiscal adjustments episodes are implemented, both in terms of their design (taxes vs. spending) and timing. Such episodes rely fundamentally on increasing tax rates and bases of indirect taxes (such as the VAT) that hit broad segments of the population. Moreover, these policies are often implemented when politicians have no choice but to consolidate, that is, under severe economic circumstances. These macro results are corroborated with micro evidence from an original survey experiment that measures voter’s fiscal policy preferences over the business cycle in seven countries across Latin America. The experimental evidence shows that respondents prefer expenditure cuts to tax increases during downturns, which is the opposite of the type of consolidations that countries typically pursue.     

Vertical fiscal imbalance and local fiscal indiscipline: Empirical evidence from China

Based on Chinese city-level panel dataset, this paper examines the effects of vertical fiscal imbalances (VFI) on local fiscal indiscipline in a partial fiscal decentralization setting. We find that higher VFI induces a form of fiscal indiscipline: a reduction of tax collection effort by local governments. In addition, by exploiting the unique Chinese fiscal institution of “extra-budgetary” revenues, we show that in this case higher VFI does not alter local governments’ tax collection effort. Even though local governments also possess full taxing power for “extra-budgetary” revenues, these revenues do not contribute to the determination of central fiscal transfers to local governments, thus creating very different incentives for local governments response to VFI. Our results shed light on the working mechanism of the VFI and provide significant implications for improving the design of fiscal decentralization policy in China and elsewhere.     

Tax incentives in fiscal federalism: an integrated perspective

Abstract Models of fiscal federalism rarely account for the efficiency implications of intergovernmental fiscal ties for federal tax policy. This paper shows that fiscal institutions such that federal tax deductibility, vertical revenue‐sharing, and fiscal equalization (being common features of existing federations) encourage local taxation, but may discourage federal taxation. Furthermore, the structure of public spending is skewed towards local spending. We also show that, when considering Leviathan governments, fiscal institutions reduce confiscatory taxation by the federal government. The result is contrary to the Cartelization Hypothesis ( Brennan and Buchanan 1980 ). Finally, we characterize the efficient design of intergovernmental fiscal ties.     

政府间横向税收竞争的博弈及效应分析

市场化改革、财政分权以及政绩考核等制度,进一步引发了我国政府间税收竞争。横向税收竞争实际上是政府间的一种博弈,是一国范围内不同辖区政府之间为了各自利益最大化而采用税收手段进行的角逐行为及其博弈过程。利用面板数据分析东、中、西部地区税收竞争与经济发展的关系,表明税收竞争对不同地区的经济发展有着不同的效应。所以,规范税收竞争,应从适当赋予地方税权、完善转移支付体系、改革政府绩效考核制度等方面入手。     

中国均衡性转移支付对地方政府收入行为的激励效应评估*——基于动态空间工具变量与空间杜宾模型分析

本文基于全国县级面板数据，采用动态空间工具变量模型和空间杜宾模型，从地方政府收入行为视角对均衡性转移支付的激励效应进行评估。结果表明：均衡性转移支付对地方政府收入行为具有双重作用。在直接效应方面，其在一定程度上缓解了地方政府的财政压力，且不会对地方政府造成直接税收扭曲影响。但在间接效应方面，均衡性转移支付会引致地区间扭曲的税收竞争。其产生的税基效应和税率效应相互抵消，对地方政府的征税努力的影响不显著，对地方政府的财政收入行为呈现中性影响，并未产生正向激励效应。     

中国均衡性转移支付对地方政府收入行为的激励效应评估*——基于动态空间工具变量与空间杜宾模型分析

本文基于全国县级面板数据，采用动态空间工具变量模型和空间杜宾模型，从地方政府收入行为视角对均衡性转移支付的激励效应进行评估。结果表明：均衡性转移支付对地方政府收入行为具有双重作用。在直接效应方面，其在一定程度上缓解了地方政府的财政压力，且不会对地方政府造成直接税收扭曲影响。但在间接效应方面，均衡性转移支付会引致地区间扭曲的税收竞争。其产生的税基效应和税率效应相互抵消，对地方政府的征税努力的影响不显著，对地方政府的财政收入行为呈现中性影响，并未产生正向激励效应。     

The growth effects of tax rates in the OECD

This paper explores the merits of macro‐ and micro‐based tax rate measures within an open economy “fiscal policy and growth” model. Using annual data for 15 OECD countries we find statistically small, non‐robust long‐run growth effects of macro‐based average tax rates on capital income and consumption, but some evidence for average labour income tax effects. Changes in “micro” marginal income tax rates at both the personal and corporate levels yield statistically robust GDP responses of modest size. Both domestic and foreign corporate taxes appear relevant. In general, tax effects on GDP operate largely via factor productivity rather than factor accumulation.     

The effects of economic and political integration on fiscal decentralization: evidence from OECD countries

Abstract .  This paper examines the impact of economic and political integration on the vertical government structure. It argues that, by increasing the market size and the benefits of decentralized provision of public goods, integration triggered the recent process of decentralization in OECD countries. A panel analysis relates the degree of fiscal decentralization to economic and European integration, controlling for interregional heterogeneity, economies of scale, and institutions. The results mostly support a decentralizing effect of economic integration in general and of European integration in particular for heterogeneous EU countries, whereas participation of subnational governments in national decision-making is associated with more centralization.     

Imperfect Capital Mobility and Local Government Behaviour in a Two‐Period Economy

One clear result in the tax competition literature is that, when head taxes on immobile residents are available, the optimal capital tax rate for local government is zero. However, zero tax rate, when resident taxes are available, is incompatible with the phenomenon actually observed. In most countries, local governments use capital taxes as policy variables for choosing a nonzero tax rate. This paper presents a model of a two‐period economy with imperfect mobile capital to explain the behaviour of local government providing capital subsidies on capital. It further examines an equilibrium tax rate where local government’s objectives include Niskanen‐type revenue‐maximizing.     

Federalism and horizontal equity across Switzerland and Germany: a new rationale for a decentralized fiscal structure

Higher wages in agglomerations often do not reflect an increase in purchasing power, because a high percentage of the wage increase has to be spend on housing. Thus, after housing is considered taxpayers may have identical disposable incomes, although gross as well as after-tax income may differ. This unequal treatment of taxpayers is due to the taxation of nominal incomes. If tax systems taxed income based on regionally adjusted purchasing power, horizontal equity would be assured. Since this is an unfeasible option, the differences could be corrected by allowing a deduction on housing costs. Given the large revenue losses, it seems unlikely that governments in OECD countries move to a system where rents are deductible in determining taxable income. Another alternative—taxation of potentially achievable income—is unfeasible due to political opposition. A final and less costly alternative is fiscal federalism. Granting autonomy to the lower levels of the government offers local governments the power to design the tax system in a way that reflects differences in living costs. Although this option does not necessarily imply that governments effectively design the tax schedule in that way, a comparison of Germany and Switzerland shows that governments are aware of these differences across regions. The paper concludes that granting tax autonomy to the lower tiers in Germany would make many citizens, especially in the Southern part, better off and would promote horizontal equity among German taxpayers.     

Testing the taxmimicking versus expenditure spill-over hypotheses using English data

Spatial interaction among local governments in tax setting and public spending decisions is receiving increasing attention in the applied public economics literature. Spatial interaction models rely on the presence of an externality from local budget making: in traditional public finance models, external effects originate either from interjurisdictional resource flows due to tax competition for a mobile base, or from local public expenditure spill-overs into neighbouring jurisdictions. However, the recent political agency/yardstick competition literature has stressed the role of ‘informational’ externalities between neighbouring jurisdictions, and predicted tax mimicry at the local level. The actual relevance of the above hypotheses clearly needs to be assessed empirically. In this paper, an attempt is made at discriminating between alternative sources of local fiscal interaction, by using data on the English municipal authorities' budgets. While both public spending levels and local property tax rates exhibit considerable positive spatial autocorrelation, maximum likelihood and instrumental variables estimation results suggest that the interdependence among local governments can be attributed to mimicking behaviour in local property tax setting.