Optimal Taxation Literature Research Articles

Legitimate Tax Structures: Lessons from the Past

Abstract Today’s views and analyses about taxation are dominated by the social-welfare approach based on various categories of utilitarianism, most notably those developed by the optimal-tax literature. By contrast, this paper focuses on the ethical foundations of taxation and analyses a tradition that harks back to the 17th century. In particular, we emphasise the notion of legitimate taxation in the history of economic thought from the libertarian, the classical-liberal and socialist perspectives. By means of this very notion, we define the essence of a desirable tax structure and draw conclusions in regard to today’s tax policies.

Theory of Optimal Taxation and Current Tax Policy in Pakistan’s Agriculture

The theory of optimal taxation has tended to recast the existing literature of public finance into the mould of classical welfare economics by emphasising minimisation of dead weight losses resulting from the imposition of a tax or faulty tax structure. As such, these modern theories have much in common with the traditional approach in terms of efficiency and equity. In spite of this, however, the differences remain. For example, the former theories adhere strictly to the norms of classical welfare economics which treats individual consumers as utility maximisers where improvements in welfare involve change that makes one individual better-off without making someone else worse-off [Stern (1987)]. In contrast to the emphasis of traditional theories on lump-sum taxes, the optimum tax literature is concerned with the implication of using non-lump-sum taxes which have a wider range and therefore more useful to the policy-maker. The recent work on normative tax theory looks at the impact of taxation on individual decisions and the trade off between raising revenues or redistributing tax burdens and the efficiency losses [Atkinson (1987)]. Finally, the optimal tax literature may be more pragmatic in its approach than traditional works as it realistically deals with government objectives and constraints and combines them into models that are sufficiently rich to allow for differences between people regarding income and expenditure patterns.

The Rent Tax Is Too Damn Low

Economists and philosophers discuss taxation in the context of the prevailing tax base. This prevailing tax base primarily consists of levies on earned income, capital, and consumption. In the optimal tax literature, economists find that this tax base possesses a problematic tradeoff between equity and efficiency. This tax base is also controversial amongst moral philosophers because it diminishes the principle of labor ownership. I explore a tax base that does not possess these two drawbacks and hence sidesteps problems with the current tax base raised both by optimal tax theorists and moral philosophers. Even partial replacement of the current tax base with the proposed tax base would increase efficiency, improve equity, and preserve labor ownership.

Recent research on labor supply: Implications for tax and transfer policy

Most work in optimal tax theory relies on simple labor supply models that fail to incorporate insights from the modern labor supply literature. As a result, it may have reached misleading conclusions regarding the optimal tax structure. The recent work on labor supply that I review here emphasizes human capital investment and the participation margin. When the data is viewed through the lens of models that account for these features, it implies labor supply is more elastic than conventional wisdom suggests. Recent work also stresses how elasticities vary by age, education, gender and marital status. Here I explore the implications of these recent developments in the labor supply literature for the optimal design of the tax system. I also review some recent work in the optimal tax literature that does utilize more sophisticated labor supply models, and discuss how incorporating those features influences optimal tax calculations.

HOW SHOULD CAPITAL BE TAXED?

AbstractThis survey discusses how capital should be taxed in advanced economies. We review the theoretical optimal tax literature, survey empirical studies on the distribution of capital and the distortionary costs of capital taxation, and analyze the desirability of specific taxes on capital income, wealth, property, inheritances, and corporate profits. Our overall conclusion is that capital taxation plays an important role in an optimal tax system, but only certain ways of taxing capital are able to strike a balance between optimality and administrative feasibility.

Measuring economic efficiency using inverse-optimum weights

This paper provides a method to measure the traditional Kaldor-Hicks notion of “economic efficiency” when taxes affect behavior. In contrast to traditional unweighted surplus, measuring efficiency requires weighting individual benefits (or surplus) by the marginal cost to the government of providing a $1 transfer at each income level. These weights correspond to the solution to the “inverse-optimum” program in the optimal tax literature: they are the social planning weights that would rationalize the status quo tax schedule as optimal. I estimate the weights using the universe of US income tax returns from 2012. The results suggest that measuring economic efficiency requires weighting surplus accruing to the poor roughly 1.5–2 times more than surplus accruing to the rich. This is because $1 of surplus to the poor can be turned into roughly $1.5–$2 of surplus to the rich by reducing the progressivity of the tax schedule. Following Kaldor and Hicks' original applications, I compare income distributions over time in the US and across countries. The results suggest US economic growth is 15–20% lower due to increased inequality than is suggested by changes in GDP. Because of its higher inequality, the U.S. is unable to replicate the income distribution of countries like Austria and the Netherlands, despite having higher national income per capita.

A Second-Best Analysis of Alternative Instruments for the Preservation of Natural Resources

The literature on second-best environmental taxation provides us with a broad understanding of the welfare impacts of pollution regulation. However, most of the research undertaken to date has focused on environmental pollution, while other topics in environmental economics, such as the preservation of natural resources, have not warranted much attention in the optimal taxation literature. This paper uses a simple general-equilibrium model to analyze the welfare effects of taxes on final goods, taxes on natural resources, and extraction permits with a second-best approach based on the existence of initial distortionary taxes. This analysis not only takes into account the non-use utility of the mere existence of natural resources, but also captures the consequences of enjoying environmental goods on labor supply decisions, through the use-value attributed to natural resources. The comparison of the welfare impacts of a tax on final consumption and a tax on the use of natural resources is not conclusive. A consumption tax leads to a higher primary welfare effect than a resources tax, while taxing natural goods generates more revenue-recycling income than taxing consumption goods. In addition, as extraction permits do not generate new public revenues to reduce pre-existing distortionary taxes, this intervention entails the highest welfare costs.

Aspirations and Optimal Taxation: Lump-Sum and Proportional Taxes

I provide a simple two-period model comparing lump-sum taxes with proportional labor taxes. The difference to the classical optimal taxation literature is that I introduce a behavioral twist according to which people’s aspirations change from one period to another as suggested by empirical evidence. It turns out that the policy implication from this model can differ significantly from the one assuming full rationality. In the behavioral model, a lump-sum tax is much less attractive. This paper does not aim at providing a full-fledged quantitative model, it should rather be seen as a cautionary tale about the robustness of classical optimal taxation results when deviating from full rationality.

Optimal Income Taxation and Job Choice

AbstractIn this paper, we study optimal income taxation when different job types exist for workers of different skills. Each job type has some feasible range of incomes from which workers choose by varying labor supply. Workers are more productive than others in the jobs that suit them best. The model combines features of the classic optimal tax literature with labor variability along the intensive margin, with the extensive‐margin approach where workers make discrete job choices and/or participation decisions. We find that first‐best maximin utility can be achieved in the second‐best, and marginal tax rates below the top can be negative or zero.

Restoring Ramsey tax lessons to Mirrleesian tax settings: Atkinson–Stiglitz and Ramsey reconciled

This paper restores many of the Ramsey tax/pricing lessons perceived as outdated in the optimal tax literature following the Atkinson and Stiglitz (J Public Econ 6:55–75, 1976) framework wherein differential commodity taxes are considered to be redundant. The key to our findings is the incorporation of a “break-even constraint” for public firms into the Atkinson and Stiglitz framework. Break-even constraints are fundamental to the regulatory pricing literature but have somehow been overlooked in the optimal tax literature. Incorporating them reconciles the optimal-tax and the regulatory-pricing views on Ramsey tax/pricing rules.

Optimal Taxation Under Different Concepts of Justness

A common assumption in the optimal taxation literature is that the social planner maximizes a welfarist social welfare function with weights decreasing with income. However, high transfer withdrawal rates in many countries imply very low weights for the working poor in practice. We reconcile this puzzle by generalizing the optimal taxation framework by Saez (2002) to allow for alternatives to welfarism. We calculate weights of a social planner’s function as implied by the German tax and transfer system based on the concepts of welfarism, minimum absolute and relative sacrifice, as well as subjective justness. For the latter, we use a novel question from the German Socio-Economic Panel. We find that the minimum absolute sacrifice principle is in line with social weights that decline with net income. Absolute subjective justness is roughly in line with decreasing social weights, which is reflected by preferences of men, West Germans, and supporters of the grand coalition parties.

ENVIRONMENTAL SUSTAINABILITY AND THE GREENED SAMUELSON RULE

AbstractThe purpose of this paper is to investigate the implementation of green government spending as an effective instrument for enhancing both environmental sustainability and economic efficiency. Utilizing a model with two types of households examined in the optimal taxation literature, this paper analyzes the impact of green spending, the properties of optimal tax rates, and the optimal provision of the public good. We derive a modified greened version of the Samuelson rule, that is, the optimal provision of the public good in connection with environmental sustainability. Our results indicate that the overall effect of green spending measured in terms of government revenue is subject to several factors such as the influence of green spending on environmental sustainability, the cost of green spending, pollution effects, and so on. To determine the optimal provision of public goods, the aforementioned factors have to be taken into account. For instance, if the pollution effect is stronger, the individual marginal effective tax rate and the commodity tax rate on the polluting good will increase to discourage the demand for consuming polluting commodities.

Optimal commodity taxation with varying quality of goods

A standard result in the optimal taxation literature is that when agents differ in market ability and the government aims at redistributing from high- to low-skilled agents by means of an optimal nonlinear labor income tax and a set of commodity taxes, an optimally designed commodity tax structure should encourage (discourage) the consumption of goods/services that are complement with labor (leisure). In this paper we highlight that when agents can choose both the quality and the quantity of a given good/service, this standard commodity tax result needs to be qualified. First, we show that it becomes relevant to distinguish between specific and ad valorem taxes/subsidies. Second, whether the standard result holds or not depends on how the concept of labor (leisure) complement is defined, namely, whether it is defined in terms of number of units or in terms of expenditure. We also show that levying specific and ad valorem taxes at opposite signs on a given good can be a feature of the second-best optimum.

Optimal fiscal policy with heterogeneous agents

The aim of this paper is to study the relationship between the intertemporal behavior of taxes and wealth distribution. The optimal-taxation literature has often concentrated on representative-agent models, in which it is optimal to smooth distortionary taxes. When tax liabilities are unevenly spread in the population, deviations from tax smoothing lead to interest rate changes that redistribute wealth. When a “bad shock” hits the economy, the optimal policy will then call for smaller or larger deficits, depending on the political power of different groups. This effect is particularly relevant in the case of large shocks to government finances, such as wars. Keywords. Optimal taxation, heterogeneous agents, asset prices, distortion, net trade. JEL classification. E62, H21.

The choice of the personal income tax base

Starting with Vickrey (1945) and Mirrlees (1971), the optimal tax literature has studied the design of a personal income tax. The assumed ideal would be to tax earnings ability. Earnings ability is unobservable for tax purposes, however. Past papers have focused instead on designing a tax on labor income.Existing tax bases, though, depend on a broader range of information about each individual than just labor income. In principle, this supplementary information can help in designing a tax that has more attractive distributional properties, by more closely approximating an ability tax. The objective of this paper is to lay out theoretically and estimate empirically how to make best use of available information about each individual in addition to earnings, in a setting where the first-best tax would be an ability tax. The theory lays out an equity/efficiency trade off when choosing the tax base. In the empirical work, we find the tax base that is best on equity grounds alone.We find that the choice to tax couples based on their joint income, and the inclusion of dividends, interest income, and dependents' deduction in the tax base in roughly their current form can be rationalized simply based on their value in better approximating an ability tax, without any need for supplementary motivations for these provisions. However, the inclusion of mortgage and property tax payments in the list of itemized deductions cannot be defended on these grounds.

Creating Public Value with Tax and Spending Policies: The View from Public Economics

According to the framework rooted in public economics, governments can create public value by focusing tax and spending policies on remedying market failures and addressing concerns about fairness embodied in a social welfare function. By pursuing optimal tax and spending policies, governments navigate the omnipresent trade‐offs between equity and efficiency. Of course, in practice, the process by which policies are adopted does not resemble the planner's problem in social choice theory. In addition, real fiscal policies do not look much like the recommendations that arise from the optimal tax literature. Governments operate in public choice environments that are not conducive to focused remedying of market failure, and they suffer from their own tendencies to fail to achieve their objectives. Nevertheless, many of the tools are in place to help the federal and state governments focus tax and spending in ways that can maximize public value.

Optimal tax and expenditure policy in the presence of emigration

Purpose – This paper aims to present a theoretical underpinning for the fact that empirical studies have found an inverted-U curve relationship between emigration and per capita income, based on credit restrictions. The implications for tax policy are also analyzed. Design/methodology/approach – Using an intertemporal general equilibrium model, the authors characterize how the presence of an “inverted U-curve” relationship between emigration and per capita income will influence the optimal tax and expenditure policy in a country where agents have the option to move abroad. Findings – Among the results it is shown that if age-dependent taxes are available, the presence of an inverted-U curve provides an incentive to tax young labor harder, but old labor less hard, than otherwise. Originality/value – This migration model fits the empirical facts of migration better than most of the migration models previously used in the optimal taxation literature.

Flat income taxation, redistribution and labour market performance

A flat tax rate on labour income has gained popularity in European countries. This article assesses the attractiveness of such a flat tax in achieving redistributive objectives with the smallest distortions to employment. We do so by using a detailed applied general equilibrium model for the Netherlands. The model is empirically grounded in the data and encompasses decisions on hours worked, labour force participation, skill formation, wage bargaining between unions and firms and a wide variety of institutional details. The simulations suggest that the replacement of the current tax system in the Netherlands by a flat rate will harm labour market performance if aggregate income inequality is contained. Only flat tax reforms that reduce redistribution will raise employment. This finding bolsters the notions from optimal tax literature regarding the equity-efficiency trade off and the superiority of nonlinear taxes to obtain redistributive goals in an efficient way.

Beyond Samuelson's Chapter on Ramsey

Paul Samuelson proposed and practiced a program for the Whig history of economics. One such example is his account of Frank Ramsey's contribution to optimal taxation in 1927. For him and mainly for the public finance economists who rediscovered later Ramsey's contribution, Ramsey was a genius ahead of his time who used a mathematics too advanced for his contemporaries and was rediscovered only in the 1970s, when economists became more mathematically literate. In such rediscovery, a memorandum that Samuelson wrote in 1951 for the US Treasury became central. I examine Samuelson's account and the historical context of the emergence of the optimal taxation literature in the 1970s in which Ramsey was canonized.

Tax structures in developing countries: Many puzzles and a possible explanation

Tax policies seen in developing countries are puzzling on many dimensions, given the sharp contrast between these policies and both those seen in developed countries and those forecast in the optimal tax literature. In this paper, we explore how forecasted policies change if firms can successfully evade taxes by conducting all business in cash, thereby avoiding any use of the financial sector. The forecasted policies are now much closer to those observed.