The effects of agglomeration on tax competition: evidence from a two-regime spatial panel model on French data

This article studies how agglomeration economies affect tax competition between local jurisdictions. We develop a theoretical model with two main testable predictions: in a setting where agglomeration forces lessen the responsiveness of capital to tax, high-regime agglomeration jurisdictions should adopt a rent-taxing behavior, and they should react less to their neighbors’ tax policies. The panel dataset spans the period from 1995 to 2007 and focuses on the local business taxes set at the French mid-subnational jurisdiction level of départements. First, instrumental variables estimates indicate that attractive jurisdictions capture a significant part of firms’ agglomeration rent by levying higher tax rates. An increase by 1% of the localization economies indicator (a specialization index) leads to increasing the business tax rate by 0.43%. Second, local tax setting behaviors are characterized by a mimetic behavior, with best response functions that slope upwards. We propose a two-agglomeration-regime spatial lag model to estimate through ML the relationship between tax competition and attractiveness. Our main result shows that both are linked and tax mimicry is less pronounced if a jurisdiction is agglomerated. Specifically, in response to a decrease in the tax rate of neighboring local governments by 1%, local governments with strong agglomeration economies reduce their tax rate by 0.4% against 0.6% for local government characterized by a low-agglomeration regime. We show that the classical one-size-fits-all-case of a single regime of agglomeration suffers from a 40% downward bias for low-agglomeration jurisdictions. We draw the link to policy praxis by discussing the optimal design of equalization schemes.     

Fiscal equalization and lobbying

Inter-regional redistribution through tax-base equalization transfers is examined in a setting in which taxpayers, organized as lobby groups, influence policy making. With lobbying only at the local level on tax rates, social welfare maximization implies, ceteris paribus, high (low) equalization rates on the tax bases backed by the strong (weak) lobby groups. With lobbying also at the central level, equalization is distorted downward on all tax bases if the pressure groups are similar in terms of lobbying power. It is instead distorted downward (upward) on the bases backed by strong (weak) groups if they are highly heterogeneous. In the latter situation, a uniform equalization structure may perform better than a differentiated one.     

Tax Competition and Fiscal Equalization

This paper analyzes the relation between tax competition and fiscal equalization. In particular, it asks the question whether fiscal equalization schemes can mitigate inefficient tax competition. Two transfer schemes are considered: tax revenue and tax base equalization schemes. The paper shows that equalizing transfers may internalize fiscal externalities. In particular, in a small open economy tax base equalization yields efficient tax rates. Thus, transfer mechanisms with an explicit redistributive character do not always impair efficiency.     

The revenue and base effects of local tax hikes: evidence from a quasi-experiment

Due to a reform of the local equalization scheme in 2003, a set of municipalities in the German state of North Rhine-Westphalia (NRW) increased their local property and business tax rates by one to two percentage points, while the remaining municipalities kept their rates constant. I use this variation across municipalities and over time to study the revenue and base effects of local property and business tax hikes in a generalized difference-in-differences design. The results suggest that the property tax hikes had even in the long-run a revenue elasticity of unity. Accordingly, I find no adverse effects on property tax bases. For the business tax, I find no significant effects on revenues and bases. Furthermore, there are also no effects on broader economic outcomes such as local employment, firms’ wage bill, and property prices. Overall, increasing local tax rates by one to two percentage points does not seem to affect the local economy adversely.

     

Tax Setting in a Federal System: The Case of Personal Income Taxation in Canada

In a decentralised tax system, the effects of tax policies enacted by one government are not confined to its own jurisdiction. First, if both the regional and the federal levels of government co-occupy the same fields of taxation, tax rate increases by one layer of government will reduce taxes collected by the other. Second, if the tax base is mobile, tax rate increases by one regional government will raise the amount of taxes collected by other regional governments. These sources of fiscal interdependence are called in the literature vertical and horizontal tax externalities, respectively. Third, as Smart (1998) shows, if equalisation transfers are present, an increase in the standard equalisation tax rate provides incentives to raise taxes to the receiving provinces. A way to check the empirical relevance of these hypotheses is to test for the existence of interactions between the regional tax rate, on the one hand, and the federal tax rate, the tax rate set by competing regions, and the standard equalisation tax rate, on the other hand. Following this approach, this paper estimates provincial tax setting functions with data on Canadian personal income taxation for the period 1982–1996. We find a significant positive response of provincial tax rates to changes in the federal income tax rate, the tax rates of competing provinces, and the standard equalisation rate (only for receiving provinces). We also find that the reaction to horizontal competition is stronger in the provinces that do not receive equalisation transfers.     

Tax competition and tax base equalization in the presence of multiple tax instruments

The literature on tax competition has argued that tax base equalization, which reduces regional disparities in tax bases, can serve as a means of internalizing horizontal and vertical fiscal externalities. This argument assumes that each government relies on a single tax base (a regional tax on mobile capital and a federal tax on savings). This paper considers the case in which a distortionary labor tax is also available. Internalizing fiscal externalities requires that while the regional capital tax base is fully equalized, a region’s equalization entitlement for the labor tax is positive when its tax base is “larger” than the average tax base of all regions. This efficient tax base equalization system is incompatible with the primary objective of fiscal equalization.

     

Is Targeted Tax Competition Less Harmful than its Remedies?

Some governments have recently called for international accords restricting the use of preferential taxes targeted to attract mobile tax bases from abroad. Are such agreements likely to discourage tax competition or conversely cause it to spread? We study a general model of competition for multiple tax bases and establish conditions for a restriction on preferential regimes to increase or decrease tax revenues. Our results show that restrictions are most likely to be desirable when tax bases are on average highly responsive to a coordinated increase in tax rates by all governments, and when tax bases with large domestic elasticities are also more mobile internationally. Our analysis allows us to reconcile the apparently contradictory results of the previous literature.     

Tax Evasion and Auditing in a Federal Economy

This paper analyzes the relation between tax auditing and fiscal equalization in the context of fiscal competition. We incorporate a model of tax evasion by firms into a standard tax competition framework where regional governments use their audit rates as a strategic instrument to engage in fiscal competition. We compare the region’s choice of audit policies for three different cases: A scenario of unconfined competition without interregional transfers, a scenario with a gross revenue equalization (GRS) scheme and finally, a scenario with net revenue sharing (NRS), where not only the revenues from taxation but also the regions auditing costs are shared. Without regional transfers, fiscal competition leads to audit rates which are inefficiently low for revenue-maximizing governments. While in general GRS aggravates the inefficiency, NRS makes the decentralized choice of auditing policies more efficient.JEL Code: H26, H71, H77     

Tax competition and fiscal equalization under corporate income taxation

This paper challenges the view that tax base equalization by the so-called representative tax system (RTS) removes inefficient undertaxation in corporate tax competition. The innovation of the paper is that it focuses on a tax on corporate income, instead of the unit tax on capital considered in previous studies. We employ a tax competition model with fiscal equalization and show that the RTS fails to fully internalize pecuniary and fiscal externalities. As a consequence, the RTS yields inefficiently low tax rates in the Nash equilibrium of the tax competition game between governments. Tax revenue equalization performs even worse, but combined with equalization of private income it implements the efficient tax rates on corporate income.     

The effects of tax rate changes on tax bases and the marginal cost of public funds for Canadian provincial governments

The efficiency losses from taxation vary directly with the responsiveness of a government??s tax bases to tax-rate increases. We estimate the dynamic responses of tax bases to changes in tax rates using aggregate panel data from Canadian provinces over the period 1972 to 2006. Our preferred empirical results indicate that a one percentage point increase in corporate income, personal income, and sales tax rates is associated with a 3.67, 0.76, and 1.17 percent reduction in their respective tax bases in the short run. The corresponding long-run tax base semi-elasticity estimates are higher: ?13.60, ?3.63, and ?3.18, respectively. We use the tax base elasticity estimates to calculate the marginal cost of public funds (MCF) for the provinces?? three major taxes. Our computations indicate that the corporate income had the highest MCF and that the sales tax had the lowest MCF in all provinces in 2006. The MCF for the personal income tax ranged from 1.44 in Alberta to 3.81 in Quebec. Our results imply that there would have been significant welfare gains in 2006 from reductions in provincial corporate income tax rates. Our computations also indicate that the equalization grant formula may reduce the perceived MCF of the provinces that receive these grants, and that increases in provincial corporate and personal income taxes can cause significant reductions in federal tax revenues.     

Has Tax Competition Emerged in OECD Countries? Evidence from Panel Data

The theory of international tax competition suggests a shift of tax burden from mobile to immobile tax bases, especially for small open economies. This paper assesses these hypotheses empirically using a sample of 23 OECD countries and the time period 1965–2000. In accordance with tax competition theory, we find that capital mobility exerts a negative impact on capital tax burden, and a positive one on labor tax burden. Further, we observe a positive effect of country size, suggesting that small open economies are levying lower capital and labor taxes than larger ones. Finally, we analyze the time pattern of tax competition and demonstrate that tax competition has intensified since the mid 1980’s.JEL Code: H7, H87, C23     

A partial race to the bottom: corporate tax developments in emerging and developing economies

This paper assembles a new dataset on corporate income tax regimes in 50 emerging and developing economies over 1996–2007 and analyzes their impact on corporate tax revenues and domestic and foreign investment. It computes effective tax rates to take account of special regimes, such as tax holidays, temporarily reduced rates and increased investment allowances. There is evidence of a partial race to the bottom: countries have been under pressure to lower tax rates in order to lure and boost investment. In the case of standard tax systems (i.e. tax rules applying under normal circumstances), the effective tax rate reductions have not been larger than those witnessed in advanced economies, and revenues have held up well over the sample period. However, a race to the bottom is evident among special regimes, most notably in the case of Africa, creating effectively a parallel tax system where rates have fallen to almost zero. Regression analysis reveals higher tax rates adversely affect domestic investment and FDI, but do raise revenues in the short run.     

The assignment and division of the tax base in a system of hierarchical governments

Vertical externalities, changes in one level of government’s policies that affect the budget of another level of government, may lead to non-optimal government policies. These externalities are associated with tax bases that are shared or “co-occupied” by two levels of government. Here I consider whether co-occupancy of tax bases is desirable. I examine the optimal extent of the tax bases of a lower level of government (local) and a higher level (state). I find that it is optimal to have co-occupancy in the absence of other corrective policies if commodities in the tax bases are substitutes. Further, if the state government can differentially tax the co-occupied segment of the tax base and the segment it alone taxes it will obtain the (second-best) outcome obtained with other policy instruments such as intergovernmental grants.     

Taxation without representation: local fiscal response to intergovernmental transfers in China

This paper studies the effects of intergovernmental transfers on local public spending in China, an authoritarian country where local politicians are not largely accountable to residents. The identification exploits a discontinuity from the central government’s designation of National Poor Counties. We find that additional transfers to county governments increase local public spending one-for-one. We further confirm that counties receiving additional transfers do not reduce the effective tax burden borne by firms. The results echo the empirical anomaly of the flypaper effect found in developed economies under democratic governments.     

Fiscal federalism and local public finance: A computable general equilibrium (CGE) framework

This paper attempts to make an argument for the feasibility and usefulness of a computable general equilibrium approach to studying fiscal federalism and local public finance. It begins by presenting a general model of fiscal federalism that has at its base a local public goods model with (1) multiple types of mobile agents who are endowed with preferences, private good endowments, and land endowments, (2) local governments that produce local public goods funded by a property tax, and (3) a land market that capitalizes local policies to equilibrate supply and demand. To this, a state (or national) government producing a state public good is added, and all levels of government abide by majority rule voting. A computable general equilibrium framework is derived from this theoretical model and calibrated to New Jersey micro tax data. It has been applied elsewhere to study the dominance of property in local tax bases as well as the general equilibrium effects of state or national intergovernmental programs such as redistributive grants in aid, district power equalization, and the deductibility of local taxes. Results in these areas are summarized and potential future applications discussed.     

Agglomeration,tax competition,and fiscal equalization

This paper analyzes the impact of fiscal equalization on asymmetric tax competition when positive agglomeration externalities are present. It uses a model focusing on the strategic reason for capital taxes to demonstrate that per capita fiscal capacity equalization improves the spatial allocation of capital provided a sufficiently rich (marginally) larger region and sufficiently strong agglomeration externalities. If tax revenue is used to finance public goods, per capita fiscal capacity equalization generally cannot simultaneously eliminate public good inefficiency and spatial inefficiency. However, the achievement of full efficiency for ex ante identical regions requires excessive (full) equalization in the presence (absence) of agglomeration externalities.     

Tax coordination with different preferences for public goods: Conflict or harmony of interest?

The paper analyzes strategic commodity taxation in a model with trade in a single private good that is simultaneously imported by consumers of a high-tax country and exported by its producers. Conditions for the existence of a Nash equilibrium are given, and an asymmetry is introduced through different preferences for public goods. Two tax coordination measures are discussed—a minimum tax rate and a coordinated increase in the costs of cross-border shopping. It is shown that tax coordination generally benefits the high-tax country while the low-tax country will gain only if the intensity of tax competition is high in the initial equilibrium or if governments are pricesensitive toward the effective marginal costs of public good supply.     

Pillar 2: tax competition in low-income countries and substance-based income exclusion

Pillar 2 of the OECD's global tax reform proposal will have significant direct and indirect impacts for low-income developing countries (LICs). Most interesting and problematic is the question as to how the global anti-base erosion (GloBE) rules for a proposed global minimum effective tax will affect tax competition behaviour in LICs, and how LICs should respond when a critical mass of higher-income economies adopt the new structure. Most LICs are source-only countries, and they are very much in competition to attract foreign direct investment. Do LICs want to continue to compete using the tax system to the extent possible, to step back from that competition, or to take some intermediate course? Pillar 2 does not itself change a country's desired position on the competition spectrum – it merely affects how, and to what extent, that position can still be obtained. This paper posits that LICs should adopt qualified domestic minimum top-up taxes, and that this will not itself have a negative impact on their competitiveness. The primary focus of the paper, however, is on the design of the substance-based income exclusion (carve-out), examining the following three questions. Should the GloBE have been designed without a carve-out? Would there have been a better way of designing it? How will LICs be affected? The paper concludes that, as little real advantage is likely to accrue to LICs from intangible assets, minimising tax competition for those assets will have relatively little impact on them; and that, from an economic efficiency standpoint, shifting the tax burden away from a normal return and toward economic rents – albeit imperfectly – is a reasonable solution.     

地方竞争是否阻碍了地方政府债务绩效的提升？——理论框架及空间计量研究

本文从举债行为策略视角考察地方竞争对地方政府债务绩效的影响。 首先,从不同地区间举债行为策略互动的视角对地方竞争如何影响地方政府债务绩效进行理论诠释,其次,在采用Global超效率DEA方法测度地方政府债务绩效的基础上,突破空间独立性假设,运用空间杜宾模型对地方竞争影响地方政府债务绩效的效果及空间外溢性进行实证检验。研究发现,在地方效用最大化目标导向下,无论是地方税收竞争还是公共投资竞争,都对债务增速产生了较为显著的正向影响和空间外溢效应,导致地方采取主动扩大债务规模的举债行为策略。与此同时,随着债务规模的持续增长,无论是地方税收竞争还是公共投资竞争,都将对债务绩效产生“规模报酬递减”的负向影响和空间外溢效应,尤其是公共投资竞争的影响效果更加明显。进一步地,如果考虑到可能存在预算软约束现象,地方竞争还将与预算软约束行为相结合,对债务绩效产生了“使用效率递减”的负向影响。本文结论为通过债务合理使用来促进经济高质量发展,防范化解地方政府债务风险提供了政策启示。     

分税与地方财政支出结构

本文研究了税收分成对地方财政支出结构的影响。理论分析发现,在地方政府的财政支出结构竞争中,税收分成比例的提高将直接导致地方政府增加生产性公共支出,发挥生产性支出的产出外部性,提高产出水平和自身税收收入水平,实现福利最大化。一系列经验分析显著地验证了上述结论,即当地级市政府的税收分成率提高10%,该地区生产性支出占比将提高1.39%。本文的分析和结论有助于解释中国地方财政支出结构变动的原因,从而为政府间税收分配改革提供有效的政策建议。