Revenue and Progressivity Neutral Changes in the Tax Mix

There has been much debate about the redistributive implications of a consumption tax and the treatment of low income households. This article presents a general model which allows for the interdependence between income and consumption taxes, while allowing for transfer payments to the low paid. The appropriate adjustment of transfer payments in response to a change in the tax mix, in order to maintain a fixed real value of transfers, is examined. The use of exemptions, of those goods for which the proportion of expenditure falls as total household expenditure rises, in order to increase the progressivity of consumption taxes is also considered. The model enables changes in the tax mix, which are both revenue and progressivity neutral, to be devised.     

THE BUILT-IN FLEXIBILITY OF INCOME AND CONSUMPTION TAXES IN NEW ZEALAND

This paper provides estimates of individual and aggregate revenue elasticities of income and consumption taxes in New Zealand, based on the 2001 tax structure and expenditure patterns. Using analytical expressions for revenue elasticities at the individual and aggregate levels, together with a simulated income distribution, values for New Zealand were obtained. Results using equi-proportional income changes suggest that the aggregate income and consumption tax revenue elasticities are both fairly constant as mean income increases, at around 1.3 and 0.95 respectively. This latter estimate assumes that increases in disposable income are accompanied by approximately proportional increases in total expenditure. If there is a tendency for the savings proportion to increase as disposable income increases, a somewhat lower total consumption tax revenue elasticity, of around 0.9, is obtained for 2001 income levels. However, non-equiproportional income changes are more realistic. Allowing for regression towards the geometric mean income reduces these elasticities, giving an elasticity for income and consumption taxes combined that is only slightly above unity. Examination of the tax-share weighted expenditure elasticities for various goods also revealed that, despite the adoption of a broad based GST at a uniform rate in New Zealand, the persistence of various excises has an important effect on the overall consumption tax revenue elasticity, especially for individuals at relatively low income levels.     

Commodity taxes and welfare under endogenous market conduct

We consider consumption taxes in a model of endogenous Cournot versus Bertrand competition. It is argued that when the choice of unit versus ad valorem taxes affects longer-term decisions beyond the customary price or quantity decisions, the mix of the two taxes co-determines market conduct. This gives ad valorem taxes an anti-competitive effect that harms ad valorem taxes’ efficiency in comparison with unit taxes. We show that a mix of the taxes—or a unit tax alone if we compare one or the other of the taxes—is sometimes welfare superior on account of consumer-price and tax revenue effects. A practical implication of our findings is that pass-through rates are only sometimes useful guides for policy. In fact, we show when the proper response to demand for higher revenue is a higher unit tax rate and a lower ad valorem tax rate.     

Capital and Consumption Tax Reforms in a Small Open Economy

The effects of a reform in capital and consumption taxes on private welfare and government tax revenue are examined for a small open, capital‐importing economy. A trade‐off between private welfare and tax revenue is encountered in maximizing social welfare. Nonetheless, lowering capital taxes and raising consumption taxes can increase both private welfare and tax revenue if the initial tax rates are not optimal. In addition, a tax reform by this fashion is a likely response to a rise in the foreign rate of return on capital.     

THE IMPACT OF GOVERNMENT DEFICITS ON PERSONAL AND NATIONAL SAVING RATES

This study provides fresh evidence on the responsiveness of private consumption and, by implication, saving to government deficits. It focuses on consumption and saving from 1981 to 1989, a period during which the personal saving rate was characterized as surprisingly unresponsive to high federal budget deficits. The authors attempt to determine whether this experience is consistent with previous behavior. They also test whether this experience refutes the Ricardian Equivalence Proposition (REP), under which consumers incorporate the government's intertemporal budget constraint into their own.
The analysis involves estimating two consumer expenditure functions based on two measures of current income capable not only of explaining expenditure behavior during the postwar period but also of successfully forecasting out of sample into the 1981–1989 period. Only one model is consistent with the REP, but neither model indicates that high government deficits caused the drop in the national saving rate experienced during the 1980s. Both models predict similar short-run responses to shifts in the government deficit. The responses depend crucially on the mix of tax and expenditure changes used to achieve the deficit shift. Both consumption and saving are more responsive to changes in government expenditures on goods and services than they are to changes in taxes.     

Taxation for the 21st century: the automated payment transaction (APT) tax

This paper examines the desirability and feasibility of replacing the present system of personal and corporate income, sales, excise, capital gains, import and export duties, gift and estate taxes with a single comprehensive revenue neutral Automated Payment Transaction (APT) tax. In its simplest form, the APT tax consists of a flat tax levied on all transactions. The tax is automatically assessed and collected when transactions are settled through the electronic technology of the banking/payments system. The APT tax introduces progressivity through the tax base since the volume of final payments includes exchanges of titles to property and is therefore more highly skewed than the conventional income or consumption tax base. The wealthy carry out a disproportionate share of total transactions and therefore bear a disproportionate burden of the tax despite its flat rate structure. The automated recording of all APT tax payments by firms and individuals eliminates the need to file tax and information returns and creates a degree of transparency and perceived fairness that induces greater tax compliance. Also, the tax has lower administrative and compliance cost. Like all taxes, the APT tax creates new distortions whose costs must be weighted against the benefits obtained by replacing the current tax system.     

TAX REFORM

After brief individual presentations, panelists discuss among themselves and with the audience a broad spectrum of issues regarding various taxes and tax reform proposals. The discussion includes such issues as privatizing Social Security and Medicare, eliminating income tax withholding, and the merits and demerits of income taxes, consumption taxes, value added taxes, sales taxes, and taxes on resources that have an inelastic supply. One panelist relates his recent experiences using his tools as an economist to deal with tax and related issues as a current member of the Canadian Parliament. Another cites practical problems of implementing tax reform from his long experience advising governments, especially in Latin America. A major focus of the exchange of views is on public choice problems involved in passing and implementing a so-called flat tax. However, the discussion also deals with economic efficiency and equity considerations and with nearly all other types of taxes. The discussion includes not only the impact on the country within which tax reform occurs, but international implications, as well.     

Revenue-increasing and welfare-enhancing reform of taxes on exports

The loss of revenue from a reduction in export taxes has been a concern for trade policy reform in many developing countries. We discuss a strategy for selective reform of taxes on exports that enhances welfare and increases revenue. The strategy involves a reduction in the export tax on a given commodity with an offsetting increase in production tax to keep the producer price unchanged. This strategy is especially promising for exportables with a net subsidy on domestic consumption due to high export taxes and low consumption taxes.     

Welfare Effects of National Taxes in an Economy with Regions

The present paper illustrates that changes in national commodity and income tax rates will affect the location choices of mobile factors of production within an economy with regions as well as the total supply of these factors to the economy. It is also argued that revenue (expenditure) neutral changes in the tax mix, for example, an increase in the commodity tax combined with a decrease in the income tax rate, will affect the domestic distribution of mobile factors, their supply to the economy and social welfare. In other words, revenue neutrality should not be used as a guide to the welfare effects of tax mix changes.     

Shifting Taxes from Labor to Consumption: More Employment and more Inequality?

This paper investigates the effect of shifting taxes from labor income to consumption on labor supply and the distribution of income in Germany. We simulate stepwise increases in the value‐added tax (VAT) rate, which are compensated by revenue‐neutral reductions in income‐related taxes. We differentiate between the personal income tax (PIT) and social security contributions (SSC). Based on a dual data base and a microsimulation model of household labor supply behavior, we find a regressive impact of such a tax shift in the short run. When accounting for labor supply adjustments, the adverse distributional impact persists for PIT reductions, while the overall effects on inequality and progressivity become lower when payroll taxes are reduced. This is partly due to increases in aggregate labor supply, resulting from higher work incentives.     

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.     

Efficiency aspects of increasing inheritance taxes while decreasing income taxes

This article tries to shed some light on the economic efficiency aspects of a tax reform that would increase inheritance taxes while decreasing income taxes. An analysis of labour market decisions following the activation of such a reform is presented. An international comparison of inheritance tax collection shows that almost all industrial countries impose an inheritance tax. However, government revenue from inheritance and gift taxes in Europe is lower than 1% of GDP and is very low in the United States as well. Applying the proposed reform could increase work hours and delay retirement decisions.     

Optimal Taxation in Life-Cycle Economies

We use a very standard life-cycle growth model, in which individuals have a labor-leisure choice in each period of their lives, to prove that an optimizing government will almost always find it optimal to tax or subsidize interest income. The intuition for our result is straightforward. In a life-cycle model the individual's optimal consumption-work plan is almost never constant and an optimizing government almost always taxes consumption goods and labor earnings at different rates over an individual's lifetime. One way to achieve this goal is to use capital and labor income taxes that vary with age. If tax rates cannot be conditioned on age, a nonzero tax on capital income is also optimal, as it can (imperfectly) mimic age-conditioned consumption and labor income tax rates. Journal of Economic Literature Classification Numbers: E62, H21.     

Schumpeterian Growth with Productive Public Spending and Distortionary Taxation

Schumpeterian growth theory eliminates the scale effect by positing a process of development of new product lines that fragments the aggregate market in submarkets whose size does not increase with population or the size of the workforce. This entails the sterilization of the growth effects of selected fiscal variables. This insight is applied to shed new light on the role of distortionary taxes on consumption, household labor and assets income, corporate income, and of productive public spending. The framework allows the identification of which of these fiscal variables have permanent (steady‐state) growth effects, and which ones have only transitory effects. It also allows the transitional dynamics to be solved analytically and thus the analysis of the welfare effects of revenue‐neutral changes in tax structure. It is found that replacing taxes that distort labor supply with taxes that distort saving/investment choices raises welfare, and the intuition behind this surprising result is discussed.     

Effect of the Tax System ON R&D Intensity,Growth, Wages and Consumption Share

We propose a general equilibrium knowledge‐driven (semi‐)endogenous‐growth model with horizontal R&D, which is extended to consider two types of labour, skilled and unskilled, and exogenous government expenditure, financed through taxes on financial assets and on labour income, to analyse the implications of the tax system on R&D intensity, economic growth, wage inequality and consumption share in the output. In particular, we show that: (i) taxes have negative influence in the consumption share, being higher the marginal effect of the labour‐income tax; (ii) for any given government expenditure share, an increase (a decrease) in financial‐assets tax decreases (increases) the labour‐income tax; (iii) only the financial‐assets tax affects negatively the R&D intensity and the skill‐premium; thus, to reduce the skill‐premium the financial‐assets tax must increase; (iv) ignoring the effect on wage inequality and on R&D intensity, taxes are substitutes.     

Externalities and optimal taxation

This paper reexamines the optimal tax design problem (income and commodities) in the presence of externalities. The nature of the second–best, and the choice of the tax instruments, are motivated by the informational structure in the economy. The main results are: (i) environmental levies (linear or nonlinear) differ in formula from Pigouvian taxes by the expressions for the optimal tax on private goods; (ii) externalities do not affect commodity tax formulas (linear and nonlinear) for private goods; (iii) externalities do not affect the income tax structure if commodity taxes are nonlinear and affect it if commodity taxes are linear; and (iv) a general income tax plus strictly Pigouvian taxes are sufficient for efficient taxation if individuals of different types have identical marginal rates of substitution (at any given consumption bundle).     

The optimal taxation of risky capital income: An elasticity rule

Should risky capital income be taxed like safe income or should tax rates be differentiated? The question is analyzed in a 2-assets model of portfolio choice. Flat tax rates are chosen in order to maximize the investor's expected utility from terminal wealth subject to an expected tax revenue constraint. If lump-sum taxes are not available, optimal tax rates are characterized by an elasticity rule: The relative change in the risk remuneration should be equal to the inverse of the product of two elasticities. One is the output elasticity of capital. The other is the demand elasticity for risky investments with respect to a revenue preserving tax variation.     

间接税负担对收入分配的影响分析

本文利用城市住户调查资料考察了中国增值税、消费税和营业税这三项主要的间接税在不同收入群体的负担情况。我们的研究表明 ,低收入家庭收入中负担增值税和消费税的比例大于高收入家庭 ,但高收入家庭收入中负担营业税的比例大于低收入家庭。整个间接税是接近成比例负担的。间接税恶化了收入分配 ,但并不显著     

GROWTH AND VARIABILITY OF SCHOOL DISTRICT INCOME TAX REVENUES: IS TAX BASE DIVERSIFICATION A GOOD IDEA FOR SCHOOL FINANCING?

School districts in Ohio have the option of diversifying their revenue base by adopting income taxes. Using a panel of Ohio school districts that adopted a local income tax from 1990 to 2008, we find that revenues are procyclical and fluctuate only mildly. The estimated short‐ and long‐run income elasticity of school district income tax revenues is 1.05 and 1.04, respectively. We also find that the school district tax base fully adjusts to its long‐run equilibrium within 2 years. Finally, we show that school district income tax adoption does not provide more stability to total school district tax revenues in the short or the long run. (JEL H71, H75)     

Relative Consumption Concerns and the Optimal Tax Mix

This paper studies the optimal tax mix (taxes on income and commodities) under asymmetric information in a two‐type model, when individuals make relative consumption comparisons. The model includes both positional and nonpositional goods, taking into account the fact that relative concerns matter for some but not for all commodities. We find that in general the whole tax system is affected by the externalities caused by the consumption of positional goods, notably also the taxes on income and on a nonpositional good. The tax rates on positional goods are higher than in the absence of status effects, reflecting their Pigouvian role. The sign of the Pigouvian part in the income tax schedule is ambiguous and depends crucially on whether status goods are complements or substitutes to leisure.