Tax competition,tax coordination and tax harmonization: The effects of EMU

There is little doubt that the step towards a monetary union in Europe will increase both the distorionary effects of existing differences in national tax systems and the intensity of tax competition for internationally mobile commodity and factor tax bases. This paper discusses selected issues of commodity and capital tax coordination that are likely to be affected by monetary unification. Starting from the distortive present scheme of value-added taxation in Europe we first analyze the effects of a switch to a general origin-based VAT as a way to maintain national tax rate autonomy over this important tax base. While an origin-based VAT would neither distort trade flows — both within the EU and with third countries — nor investment decisions in the long-run, its short-run effects are likely to be severe in the absence of exchange rate flexibility. In the field of capital taxation the focus switches to the feasibility of regional harmonization measures when there is no cooperation with the rest of the world. We argue that in a monetary union the mobility costs of capital will be significantly lower within the EU as compared to outside investments. This provides an efficiency argument for minimum source taxes on both interest income and corporate profits even if cooperation with third countries is infeasible.     

Monetary effects of a consumption tax

Abstract. This paper analyzes the short-run effects of a consumption tax increase (VAT or national sale tax) on aggregate demand. Because it increases the prices paid by consumers relative to the prices received by suppliers, a consumption tax affects the supply of real money balances, in addition to reducing expenditures. Hence, when a consumption tax replaces an income tax so as to maintain a balanced government budget, the net effect can plausibly be contractionary.     

The value added tax: Its causes and consequences

This paper explores the causes and consequences of the remarkable rise of the value added tax (VAT), asking what has shaped its adoption and, in particular, whether it has proved an especially effective form of taxation. It is first shown that a tax innovation, such as the introduction of a VAT, reduces the marginal cost of public funds if and only if it also leads an optimizing government to increase the tax ratio. This leads to the estimation, on a panel of 143 countries for 25 years, of a system describing both the probability of VAT adoption and the revenue impact of the VAT. The results point to a rich set of determinants of VAT adoption, and to a significant but complex impact on the revenue ratio. The estimates suggest, very tentatively, that most countries which have adopted a VAT have thereby gained a more effective tax instrument, though this is less apparent in sub-Saharan Africa.     

Information sharing for consumption tax purposes: An empirical analysis

The paper studies the determinants of information sharing between Swedish tax authorities and 14 EU tax authorities for value-added tax (VAT) purposes. It is shown that trade-related variables (such as the partner country’s net trade position and population size), reciprocity, and legal arrangements are significant determinants of Sweden’s trade in tax information. Countries that are net exporters of goods to Sweden appear to be net importers of information from Sweden, reflecting their need for information to combat export-related VAT fraud. Reciprocity plays a more important role in Sweden’s export of information upon official request than in its spontaneous export of information.     

On selective indirect tax reform in developing countries

The current consensus on indirect tax reform in developing countries favors a reduction in trade taxes with an increase in VAT to raise revenue. The theoretical results on selective reform that underlie this consensus are, however, derived from partial models that ignore the existence of an informal economy. Once the incomplete coverage of VAT due to an informal economy is acknowledged, we show that, contrary to the current consensus, the standard revenue-neutral selective reform of trade taxes and VAT reduces welfare under plausible conditions. Moreover, a VAT base broadening with a revenue-neutral reduction in trade taxes may also reduce welfare. The results raise serious doubts about the wisdom of the indirect tax reform policies pursued by a large number of developing countries.     

Carbon tax simulations using a household demand model

The main objective of this paper is to analyse consumer response and welfare effects due to changes in energy or environmental policy. To achieve this objective we formulate and estimate an econometric model for non-durable consumer demand in Sweden that utilises micro- and macro-data. In the simulations, we consider two revenue neutral scenarios that both imply a doubling of the CO₂ tax; one that returns the revenues in the form of a lower VAT and one that subsidise public transport. One conclusion from the simulations is that the CO₂ tax has regional distribution effects, in the sense that household living in sparsely populated areas carry a larger share of the tax burden.     

A tax discrepancy coefficient resulting from tax evasion or tax expenditures

Tax evasion and tax expenditures introduce discrepancies between taxpayers. In this paper, a tax discrepancy coefficient has been worked out in order to establish, given a constant tax yield, what bigger or smaller amounts taxpayers would have to pay if tax evasion or tax expenditures were completely eliminated. After the definition of the coefficients these are calculated for individual income tax returns in Belgium. Similar coefficients can be established for other types of taxation, such as inheritance tax, corporate income tax or even sales tax (e.g. V.A.T.).     

The relationship between tax rates and tax revenues in eurozone member countries - exploring the Laffer curve

We estimate Laffer Curves for direct and indirect taxes for each Eurozone country, using panel data from 1995 to 2011, by means of Seemingly Unrelated Regression (SUR) models. We choose the three taxes that contribute the most to the government tax revenue: the value added tax (VAT), the corporate income tax (CT), and the labour income tax (LT). From our estimated significant parameters, which have the expected signs according to the Laffer Curve theory, we obtained a maximum/optimal tax rate for VAT for Greece, Portugal, and Slovakia and for the majority of the Eurozone countries for direct taxes. We also take into consideration the business cycle. Many countries do not present differences in regime, and when they do, the optimal tax rate is higher during recessions. Finally, we compare the observed tax rates in 2012 to the estimated optimal tax rates, to assess if the 2012 policy was located at the prohibitive range of the Laffer Curve. Our results are important for the discussions about fiscal discipline and harmonization in the Eurozone, since they exhibit important disparities between countries and taxes. We can see that, especially for CT and LT, there is a strong divide between the values of the optimal maximum tax rates for Eastern European countries and Western European economies. Additionally, the economic and financial conditions of each country also influence the value for the tax rate.     

Is the value added tax a useful macroeconomic stabilization instrument?

The value added tax (VAT) has been proposed as a macroeconomic stabilization instrument. This paper considers some practical implications of a variable VAT. It then develops a dynamic general equilibrium model to assess its usefulness as a stabilization instrument. A variable rate VAT would no longer be less distortionary than other taxes. It would distort between current and future consumption, i.e. savings and investment decisions, and hence raise the economic costs of taxation. Moreover, a variable VAT would be less effective in dampening business cycles than the conventional stabilization tool, an interest rate. This is because of the additional adverse supply effects. A change in the interest rate affects this period's savings and investment decisions, whereas a variable VAT rate would influence savings and investment decisions over time. A variable VAT rate is therefore unlikely to be a useful stabilization instrument.     

Cigarette demand and tax policy for race groups in South Africa

This paper calculates cigarette demand for race groups in South Africa. Elasticities are the most important information a tax policy analyst can have. Elasticities determine how the tax base will change with a change in the tax rate and thus how government revenues will respond to the tax. Elasticities also determine the excess burden that consumers will bear as a result of the tax. As such, own price, crossprice, and expenditure elasticities are calculated along with government revenue maximizing tax rates, and total and excess burdens. Parametric and semiparametric estimation techniques are used and compared. Results show that a tax on cigarettes will discourage nonsmokers from starting to smoke and mainly raise revenue from current smokers. Furthermore, it is found that consumption behaviours between groups are different implying different government revenue maximizing tax rates for each group affecting the distribution of income.     

The incidence of import liberalization with and without a value added tax: an application to bangladesh

This paper examines the impact of import tariffs and tariff-replacing indirect taxes on the welfare of households grouped by the size distribution of income. A computable general equilibrium model for Bangladesh is simulated to examine the removal of quantitative restrictions and tariffs as well as the replacement of trade taxes with a value added tax (VAT). Import liberalization alone expands the manufacturing sector and increases the welfare of lower income households. If a uniform VAT is placed on both imports and all non-agricultural production in order to replace the lost tariff revenue for the government, some of the gains from import liberalization are diminished. If exports are exempted from the VAT, the gains are sustained to a greater degree. With a combination of tariff liberalization, quota markups, and the VAT, the economy goes through a contraction and the welfare of all households is reduced.     

Ad‐valorem tax incidence and after‐tax price adjustments: evidence from Brazilian basic basket food

Abstract Recent empirical work on tax incidence suggests that after‐tax price responses are independent of the tax change direction. This paper investigates asymmetric price responses to ad‐valorem tax changes in the Brazilian food market for 10 goods in 16 states during the period 1994–2008. Our results suggest that when tax rates increase, tax full shifting occurs for 2 of the 10 goods and tax overshifting occurs for one of the 10 goods; the price response to tax cuts is an undershifting for all goods. Moreover, this last result is similar to our estimation of (average) tax incidence (undershifting). We also investigate the short‐term and long‐term relationships between prices and VAT rate parameters and find that prices seem to respond to tax shocks within four months.     

增值税扩围改革有助于减轻服务业税负吗?——基于投入产出表的分析

增值税扩围改革对服务业行业流转税负担的影响同时包含"税率提高的增税效应"与"进项抵扣的减税效应"。利用投入产出表数据分析并测算增值税扩围改革影响各服务业行业流转税负变动的净效应,结果发现:不同服务业行业的税负变化情况差异较大,商务服务业等大多数行业的税负将减轻,但租赁业等部分行业的税负会加重,税改后的增值税税率水平选择与中间投入比率是影响服务业行业税负变动的主要因素。为了优化服务业发展的税收环境,使增值税扩围改革有助于减轻服务业的流转税负,应根据税负平衡点审慎选择服务业行业税改后适用的增值税税率。当前制定的租赁业、交通运输业的试点税率水平偏高,有必要予以降低。     

The corporation as a tax shelter: Evidence from recent Israeli tax changes

Shifting of income between the corporate and the personal income tax bases in response to tax incentives is the premise of the literature on taxation and organizational form. Empirical evidence of income shifting is, however, merely circumstantial. Using a unique panel of high-frequency VAT data from Israel, we trace the footprints of income shifting through incorporation by high-income individuals who convert their labor income into less-taxed dividends. A rise in the personal income tax rates resulted in more than 4500 companies–a 5% addition to the corporate sector–being registered in the 12 months following the tax change, mainly by self-employed professionals in the industries of business activities and health services; behavioral response to taxation was found only in the top percentile of the income distribution.     

增值税减税政策对企业投资的影响研究*——基于企业杠杆率差异的视角#br#

我国增值税改革持续深化，增值税减税的效果成为学界和政府关注的热点问题。由于产品供需存在弹性，企业无法将增值税税负完全转嫁给消费者，并且不同企业面临的借贷市场环境存在差异，因此增值税减税对企业投资的影响问题显得较为复杂。本文针对企业投资决策建模，发现增值税减税会增加企业投资，但杠杆率较高企业由于借贷市场受到约束，投资水平的提高弱于杠杆率低的企业。本文基于2016Q3-2019Q1上市公司的季度数据，利用双重差分模型实证分析显示，2018年增值税减税政策提高了企业的投资水平，且对固定资产投资的影响更为显著，但借贷市场的传导机制减弱了增值税减税政策对杠杆率较高企业投资的促进作用。     

Tax perceptions and the demand for public expenditure: evidence from UK micro-data

Using responses from the 1995 British Social Attitudes Survey (BSAS), this paper assesses if there is evidence of voter misperception of tax costs. We find convincing evidence of income tax (IT) and value added tax (VAT) misperceptions, with a systematic bias towards overestimation of tax burdens for VAT, contrary to predictions of the fiscal illusion literature. We then integrate tax misperceptions into a model of demand for public expenditure. Voters' spending preferences are strongly related to their incomes, actual tax costs, and other fiscal-related household characteristics. A tendency to overestimate tax burdens appears to have only a modest influence on demands for public spending.     

The effect of VAT rate on inflation in Latvia: evidence from CPI microdata

This article evaluates the inflation effect of recent value added tax (VAT) rate changes in Latvia by using consumer price index (CPI) microdata. Our findings suggest that the pass-through of the tax rate to consumer prices is strong in case of upward tax adjustments, especially when there are no demand restrictions, while the pass-through is weaker for tax reductions. The frequency of price changes peaks at the moment of VAT adjustment, which, however, is partially compensated by lower average size of price revisions. The level of pass-through exhibits a high degree of heterogeneity with higher pass-through for goods, especially food, and lower for services.     

关于国内增值税改革的若干思考

增大减税力度,深化增值税转型改革对于多数企业的发展而言无疑是一良机,但转型改革本身也面临着诸多问题。应该建立增值税征收管理细则,进一步扩大增值税抵扣范围,进一步减轻小规模纳税人的税收负担,对劳动密集型企业给予适当倾斜,提高征管水平和税务人员素质,更大限度发挥改革对我国经济发展的促进作用。     

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.     

The marginal cost of public funds and tax reform in Africa

In this paper we propose estimates of the marginal cost of public funds (MCF) in 38 African countries. We develop a simple general equilibrium model that can handle taxes on five major tax classes, and can be calibrated with little more than national accounts data. A key feature of our model is the explicit recognition of the informal economy. Our base case estimate of the average MCF from marginal increases in all five tax instruments is 1.2. Focusing on the lowest cost tax instruments in each country, commonly the VAT but not always, the average MCF is 1.1. Finally extending the tax base to include sections of the informal economy by removing some tax exemptions offers the potential for a low MCF source of public funds, and a lowering of MCFs on other tax instruments.