Globalisation,taxation and inequality

Today's tax systems, in which value-added taxes and payroll taxes play a prominent role, are largely creations of the 1950s. We need to invent modern tax systems adapted to the reality of the 21^st century: the growing importance of capital and the rise of inequality. This article reviews some of the challenges involved with increasing the progressivity of tax systems in a globalised world and discusses how these challenges could be overcome. I make the case for new and more ambitious forms of international cooperation and for modern forms of wealth taxation.     

Free trade taxation and protectionist taxation

The goal of this paper is to seek new insight regarding international tax policy by recasting it in parallel with the theory of international trade. This is accomplished by defining a free trade taxation regime as one that is consistent with an efficient worldwide allocation of capital, and evaluating within this perspective various aspects of tax policy, such as value-added (axes, integration, income shifting, and the choice of worldwide or territorial system of taxes.Compatibility with free trade is not the only standard against which to judge an international tax system. Nevertheless, as national economies become more integrated the importance of international taxation for the efficient functioning of capital markets will become a central policy issue.     

Investor protection,taxation, and dividends

We test the impact of taxes and governance systems on dividend payouts across countries. We show that, unlike previous studies, firms in strong investor protection countries pay lower cash dividends than in weak protection countries when the classical tax system is implemented, but they repurchase more shares to maximise their shareholders' after-tax returns. In weak protection countries, cash dividends and repurchases are low and less responsive to taxes. Our results suggest that when investors are protected, they weigh the tax cost of dividends against the benefit of mitigating the agency cost, but, when they are not, they accept whatever dividends they can extract, even when this entails high tax costs.     

Capital taxation,investment, growth,and welfare

This paper formulates a model of economic growth to study the effects of broad capital taxation (of profits, dividends, and capital gains) on macroeconomic outcomes in small open economies. A framework of exogenous growth permits modeling countries in transition to a country-specific steady state and to discern steady-state and transitory effects of shocks on economic outcomes. The chosen framework is amenable to structural estimation and, in view of the parsimony of the model, fits data on 79 countries over the period 1996–2011 well. The counterfactual analysis based on the estimated model suggests that capital-tax reductions induce positive effects on output and the capital stock (per unit of effective labor) that are economically significant and are accommodated within time windows of 5 years without much further economic response after that. The responses of economic aggregates are found to be relatively strongest to changes in corporate-profit-tax rates and weaker for dividend and capital-gains taxes.     

Expected future earnings,taxation, and university enrollment

Taxation changes the expectations of prospective university students about their future level and uncertainty of after-tax income. To estimate the impact of taxes on university enrollment, we estimate a structural microeconometric model, in which a high-school graduate decides to enter university studies if expected lifetime utility from this choice is greater than that anticipated from starting to work right away. We estimate the ex-ante future paths of the expectation and variance of after-tax income for German high-school graduates, accounting for nonrandom selection. The enrollment model takes into account university dropout and unemployment risks. Consistently with expectations, the estimation results indicate that higher expected returns to a tertiary education increase the probability of university enrollment, whereas higher uncertainty among graduates decreases enrollment rates. A simulation based on the estimated model indicates that a revenue-neutral, flat-rate tax reform with an unchanged basic tax allowance would increase enrollment rates for men in Germany.     

Gender-based and couple-based taxation

In this paper, I explore the optimal taxation of singles and couples in an economy with bargaining couples. The government is concerned with the redistribution of income from individuals with high utility to individuals with low utility, recognizing that some individuals live in couple households where resources are unevenly distributed. I analyze how redistributive linear income taxes, which depend on either gender or household composition (or both) impact the distribution of utility within and across households. An interesting implication arising from the interaction between the model elements is that even though between-group lump-sum transfers always favor women, when the bargaining power of men is high, women are subject to a higher tax rate; this in contrast to previous analyses of gender-based taxation. My quantitative analysis demonstrates that the welfare effects of gender-based taxation are sizable and even larger when taxes depend on the composition of the household.     

Regime-switching debt and taxation

The effects of changes to the tax rate are studied within a framework where an estimated regime-switching process for the debt-output ratio is embedded in a standard growth model. The regime is a hidden state variable, so agents face a signal extraction problem. Consequently, agents incorporate the possibility of switching to different fiscal regimes when forming expectations over future taxes. Decision rules have additional nonlinearity relative to fixed-regime models. Income allocation and the tax elasticity of investment depend on agents’ inference regarding the regime. Specifically, the tax elasticity can be either positive or negative, depending on whether agents perceive a tax reform as an intra-regime shock or change in regime.     

Time-saving goods,time inequalities and optimal commodity taxation

International Tax and Public Finance - Time-saving goods are defined as market goods that reduce home labor requirements (e.g., restaurants; washing machines). Assuming that time savings are...     

Bank profitability and taxation

This paper investigates how banks’ activity is affected by the corporate income tax. For this purpose it uses aggregate data on all main components of the profit and loss account and on the interest rate applied on loans and on deposits for the banking sector of the main industrialized countries during the period 1981–2003. With such information we are able to disentangle the extent to which a bank is able to shift its tax-burden forward to its borrowers, depositors, and purchasers of fee-generating services. The main result is that the taxation of banks’ profit is equivalent to a taxation on loans and as such it exerts a substantial impact on the composition of banking sector revenues. However credit intermediaries have the ability to shift a substantial part of their corporate income tax burden and therefore differences in the level of taxation cannot explain the dispersion observed in banks’ net profitability across industrialized countries.     

Value-added taxation and consumption

One of the main rationales for taxing consumption rather than income is that it is believed that consumption taxes discourage consumption, encourage savings, and thus generate higher economic growth. However, empirical evidence on the actual effectiveness of consumption taxes in stimulating savings is very limited. In this paper, we estimate the impact of a broad-based consumption tax, the value-added tax (VAT), on the aggregate consumption of fifteen European Union countries over the period 1961–2005. Our empirical results indicate, across a variety of estimation methods and specifications, that a one percentage point increase in the VAT rate leads to roughly a one percent reduction in the level of aggregate consumption in the short run and to a somewhat larger reduction in the long run.     

Administrative corruption and taxation

Administrative corruption, whereby taxpayers and collectors collude to reduce remissions, is central to tax evasion in developing countries. A framework is developed for the analysis of such corruption, based on imperfect information concerning true tax liabilities. Some tolerance of corruption can be part of an efficient collection system, especially when there are constraints on government wages or effort is required to learn payers' tax liabilities. With variable collector effort a certain amount of corruption is required, together with a two-level penalty structuredismissal if revenue targets are not met and much heavier penalties for gross corruption.     

Endogenous differential mortality,non-contractible effort and non-linear taxation

This paper studies a problem of non-linear taxation when individuals have different longevities resulting from a non-monetary effort (like exercising). We first present the laissez-faire and the first best. Like Becker and Philipson (J. Polit. Econ. 106(3):551–573, 1998), we find that the laissez-faire level of effort is too high compared with the first best, because individuals do not internalize the impact of survival on the return of their savings. We also claim that because of its non-monetary form, effort is not contractible. That is why we modify our framework and assume, for the rest of the paper, that effort is determined by the individual while the social planner only allocates consumptions. It turns out that, under full information, a tax on the return of annuitized savings is desirable for both types. This tax is higher for the low-survival individual. Under asymmetric information, the low-survival individual still faces a tax while the high-survival individual might now face a positive or negative tax on annuities. Interestingly, our results depend on the value of life.     

On the Usefulness of Operating Income,Net Income and Comprehensive Income in Explaining Security Returns

This study evaluates the usefulness of three earnings definitions (operating income, net income and comprehensive income) in explaining residual security returns. Usefulness is measured in terms of relative information content and incremental information content. In the former, the goodness-of-fit of the return-earnings relationship is compared under each earnings definition. In the latter, the increase in goodness-of-fit due to additional earnings components is measured. Based on a sample that averages 922 firms a year for 18 years, the analysis shows that operating income weakly dominates net income, and that both operating income and net income dominate comprehensive income, in information content. The results also show that those items that account for the difference between net income and operating income have incremental information content, but not those between net income and comprehensive income. The practical and academic contributions of these findings are discussed.     

Democratizing entry: Banking deregulations,financing constraints,and entrepreneurship

We examine entrepreneurship and creative destruction following US banking deregulations using US Census Bureau data. US banking reforms brought about exceptional growth in both entrepreneurship and business closures. Most of the closures, however, were the new ventures themselves. Although we find evidence for the standard story of creative destruction, the most pronounced impact was a massive increase in churning among new entrants. We argue that creative destruction requires many business failures along with the few great successes. The successes are difficult to identify ex ante, which is why democratizing entry is an important trait of well-functioning capital markets.     

Optimal income taxation and migration

We tackle the issue of optimal dynamic taxation of capital income in an economy with disconnection as in Weil (J Public Econ 38:183–198, 1989), generated by migration and intra-family altruism. We show that, when the government aims at correcting such a disconnection using time-varying weights in the social welfare function, then there is room for nonzero capital income taxation, both in the short and in the long run.     

Institutional quality and capital taxation

We describe the preferred taxation regime in a small economy with uncertain institutional quality. We obtain that a preferential taxation regime in which taxes can be matched to the mobility of the tax base may be worse off than a non-preferential taxation regime in which taxes are constant across bases with distinct mobility. Since the small economy takes foreign taxes as given, our result is not driven by a downward pressure on revenues caused by unconstrained tax competition. It is instead related to the ability of a non-preferential taxation regime to credibly convey information about the institutional quality of the small economy. We present some empirical evidence which corroborates our results.     

Education policies and optimal taxation

This paper studies the design of education policies in a setting in which optimal redistributive labor taxation is available. It is usually argued that the crucial parameter to guide education policy is the complementarity of education and ability. This is true only when labor supply is fixed or when income taxes are not allowed. I show that, if labor supply is endogenous and if the government can tax income in a nonlinear way, the crucial parameter is how the education elasticity of wage changes with ability. Taking the elasticity criterion into account, education subsidies are optimal in cases in which, under the complementarity criterion, education taxes would be optimal. To do this, I use an asymmetric information setting that motivates nonlinear taxation of income and education. JEL Classification H21 · H23 · H52 · I28