This paper concerns redistribution and public good provision under asymmetric information, which are here ingredients of a policy-problem facing each member state (nation) of an economic federation with decentralized leadership. Each member state is assumed to have its own redistributive policy and pattern of public consumption, whereas the federal level redistributes (ex-post) between the member states. The results show how and why federal ex-post redistribution may modify the use of income taxation and public good provision at the national level, relative to the policy outcome in the absence of a federal government, as well as how the national policy incentives depend on whether or not the federal government uses distortionary taxes.
This article contributes to the theory of social accounting. As such, it tries to extend earlier literature on the welfare equivalence of the comprehensive net national product in two main directions, both of which refer to the public sector. One is by considering welfare measurement problems associated with public good provision and redistributive policy, respectively, when the public revenues are raised by distortionary taxes. The other is by addressing the consequences of a “federation-like” decision structure, where independent tax and expenditure decisions are made both by the central government and by lower level governments.
This paper concerns welfare measurement in the presence of distortionary taxes. One purpose is to explain why the traditional green NNP measure fails as a welfare indicator when distortionary taxes are present. Another is to derive a green NNP analogue in a second best environment. In the second best optimum, the efficiency cost of taxation will affect both the form of the national welfare measure and the proper principles of accounting for pollution.
This paper concerns welfare measurement in an economy with union wage setting, where the equilibrium is characterized by unemployment. Contrary to results derived in the first best, the current value Hamiltonian is not an exact welfare measure in an economy with unemployment. Instead, the welfare measure also depends on “employment effect,” which are caused by the discrepancy between supply and demand in the labor market. In addition, since unemployment gives rise to heterogeneity, distributional effects will also characterize the welfare measure.
This paper analyses the potential welfare gains of introducing a technology transfer from Annex I to non-Annex I in order to mitigate greenhouse gas emissions. Our analysis is based on a numerical general equilibrium model for a world-economy comprising two regions; North (Annex I) and South (non-Annex I). In a cooperative equilibrium, a technology transfer from the North to the South is clearly desirable from the perspective of a ‘global social planner’, since the welfare gain for the South outweighs the welfare loss for the North. However, if the regions do not cooperate, then the incentives to introduce the technology transfer appear to be relatively weak from the perspective of the North; at least if we allow for Southern abatement in the pre-transfer Nash equilibrium. Finally, by adding the emission reductions associated with the Kyoto agreement, our results show that the technology transfer leads to higher welfare in both regions.
We integrate social exclusion, operationalized in terms of long-term unemployment, into the theory of optimal redistributive taxation. Our results show how an optimal mix of education policy, public employment, and support to the unemployed, in conjunction with optimal income taxation, contributes to redistribution and reduced long-term unemployment. The second-best optimum most likely implies overprovision of education relative to a policy rule that balances the direct marginal benefit and marginal cost, whereas public employment and unemployment benefits are underprovided. Our calibration shows how the policy mix varies with the government’s preferences for redistribution and the characteristics of those risking long-term unemployment.
This paper analyses how market shares for brand name drugs are affected by generic competition. The analysis is based on micro data for twelve different original drugs, which are all subject to generic competition. For five of these drugs, we find that the price of the original relative to the average price of the generic substitutes significantly affects the market share of the original drug. In addition, the introduction of a so called "reference price" system appears to have had a significant impact on the market shares of five original drugs.
This paper addresses optimal taxation, when therelationship between the consumption of a`dirty' good and the resulting environmentaldamage is uncertain and treated as a randomvariable by policy makers. The main purpose isto analyze how increased uncertainty, measuredas a mean preserving increase in the spread ofthis random variable, affects the optimalcommodity tax on the dirty consumption good. Incase the only task of government is to correctthe environmental externality, and if thepreferences are characterized by nondecreasingabsolute risk aversion, we find that thecommodity tax on the dirty consumption goodincreases in response to additionaluncertainty. If, on the other hand, thegovernment provides a public good and uses alump-sum tax in addition to the commodity tax,it is possible that the commodity tax decreasesas a response to additional uncertainty, evenif the preferences are characterized bynondecreasing absolute risk aversion. A similarresult emerges, although for different reasons,if the lump-sum tax is replaced by a laborincome tax.
This paper concerns transboundary environmental problems in the context of an optimal tax model. We assume that part of the labor force is mobile across countries, and that the set of tax instruments includes a nonlinear income tax and a commodity tax on the ‘dirty’ good that is causing damage to the environment. The purpose is to compare the (globally optimal) second best policy of a cooperative equilibrium with the policy implicit in a noncooperative equilibrium. We show that the commodity taxes differ between equilibria because of: (i) transboundary externalities not internalized by national governments, (ii) interaction effects between environmental and other policies, and (iii) labor mobility.
This paper concerns redistribution and public good provision in an economic federation with two levels of government: a local government in each locality and a (first mover) central government. Each locality is characterized by two ability-types, and the ability-distribution differs across localities. The central government redistributes via a nonlinear income tax and a lump-sum transfer to each local government, while the local governments use proportional income taxes and provide local public goods. We show how the redistributive role of taxation is combined with a corrective role, and how the central government can implement the second best resource allocation.
In this paper, we consider how the hours of work and retirement age ought to respond to a change in the uncertainty of the length of life. The results show that a decrease in the standard deviation of life-length leads to an increase in the socially optimal retirement age and a decrease in the hours of work per period spent working, if the preferences for the number of years spent in retirement are characterized by constant or decreasing absolute risk version. We also show how a benevolent policy maker can implement the social optimum through an actuarially fair pension policy.
In this paper, we consider how the hours of work and retirement age ought to respond to a change in the uncertainty of the length of life. In a first best framework, where a benevolent government exercises perfect control over the individuals' labor supply and retirement-decisions, the results show that a decrease in the standard deviation of life-length leads to an increase in the optimal retirement age and a decrease in the hours of work per period spent working. This result is robust, and is also derived in models of decentralized decision-making where individuals decide on their own consumption, labor supply, and retirement age, and where the government attempts to affect their behavior and welfare through redistribution and pension policy.
We consider a model with a population consisting of earners and retired persons; elderlycare is publicly provided. There is one big city, where congestion effects and agglomerationforces are at work, and a number of small villages. We show how the externalities related topopulation mobility lead to an inefficient spatial distribution of earners and retirees, and wecharacterize the second-best solution. Decentralization of this solution in a fiscal federalismstructure requires the use of taxes and subsidies proportional to the number of earners andretired persons living in the city and the villages.
This study derives and estimates models for the work travel time of each spouse in the household conditional on both spouses' hours of work. The model is estimated using Swedish household data. The own labour supply has a positive impact on travel time for females and a negative one for males. The estimated effects of the other spouse's labour supply are insignificant. An overall test of whether the hours of work are weakly separable from work travel time indicates that this hypothesis cannot be rejected for males but can be rejected for females.
An estimation of labour supply is modelled using the theory of urban household behaviour. The major purpose is to test the (implicit) assumption in previous labour supply studies that work travel and housing consumption are weakly separable from the hours of work. The results, which are obtained using Swedish data, imply that the hypothesis of weak separability is clearly rejected. We also find that the choice of location affects policy-relevant conclusions about the labour supply behaviour.
Following the 1987 report by The World Commission on Environment and Development, the genuine saving has come to play a key role in the context of sustainable development, and the World Bank regularly publishes numbers for genuine saving on a national basis. However, these numbers are typically calculated as if the tax system is non-distortionary. This paper presents an analogue to genuine saving in a second best economy, where the government raises revenue by means of distortionary taxation. We show how the social cost of public debt, which depends on the marginal excess burden, ought to be reflected in the genuine saving. By presenting calculations for Greece, Japan, Portugal, U.K., U.S. and OECD average, we also show that the numbers published by the World Bank are likely to be biased and may even give incorrect information as to whether the economy is locally sustainable.
Based on an endogenous growth model, this paper characterizes the conditions under which positional preferences do not give rise to intertemporal distortions as well as derives an optimal tax policy response in cases where these conditions are not satisfied. In our model, individuals can be positional both in terms of their consumption and wealth, the relative concerns partly reflect comparisons with people in other countries, and we distinguish between a (conventional) welfarist government and a paternalist government that does not respect positional preferences. We also extend the analysis to a multi-country framework and show that Nash-competition among local paternalist governments leads to a global social optimum, whereas Nash-competition among local welfarist governments does not.
In an endogenous growth model, we characterize the conditions under which positional preferences for consumption and wealth do not cause inefficiency and derive an optimal tax policy response in cases where these conditions are not satisfied. The concerns for relative consumption and relative wealth partly emanate from social comparisons with people in other countries. We distinguish between a (conventional) welfarist government and a non-welfarist government that does not attach any social value to relative concerns. We also compare the outcome of Nash-competition among local/national governments with the resource allocation implied by a global social optimum both under welfarism and non-welfarism.
This short paper analyzes whether a federal transfer system can be designed to increase welfare, when state governments create political budget cycles to increase the likelihood of reelection. The results show how the federal government may announce a transfer scheme in advance for the post-election year that counteracts the welfare costs of political budget cycles.
In this note, we analyze whether a federal transfer system can be designed to increase welfare when state governments create political budget cycles. The results show how the federal government can counteract the welfare costs of these cycles, without hindering politicians from signaling their type, by announcing a transfer scheme to subsidize expenditures that voters do not consider when voting.
This paper deals with optimal income taxation based on a household model, where men and women allocate their time between market work and household production, and where households differ depending on which spouse has the comparative advantage in market work. The purpose is to analyze the tax policy implications of gender norms represented by a market work norm for men and household work norm for women. We show how the optimal (corrective) tax policy depends on the definition of social norms, the preferences for obeying these norms, and whether men or women have the comparative advantage in market work. Two extreme results are that (i) corrective taxation should not be used at all if the norms are based on the mean value of market work and household work, respectively, given that all households have the same preferences, and (ii) only the majority household type should be taxed at the margin if the norms are instead based on the modal value.
This paper analyzes the welfare effects of a publicly provided private good with long-term consequences for individual well-being, in an economy where consumers have present-biased preferences due to quasihyperbolic discounting. The analysis is based on a two-type model with asymmetric information between the government and the private sector, and each consumer fives for three periods. We present formal conditions under which public provision to the young and the middle-aged generation, respectively, leads to higher welfare. Our results show that quasihyperbolic discounting provides a strong incentive for public provision to the young generation - especially if the consumers are naive (as opposed to sophisticated).
This paper concerns the provision of a state-variable public good in a two-type model under present-biased consumer preferences. The preference for immediate gratification facing the high-ability type weakens the incentive to adjust public provision in response to the self-selection constraint.
This paper analyzes the implications of social identity and self-categorization in the context of optimal redistributive income taxation. A two-type model is supplemented by an assumption that individuals select themselves into social categories, in which norms are formed and education effort choices partly depend on these norms. Optimal tax policy is analyzed under two different assumptions about the social objective function: a welfarist objective based on consumer preferences and a paternalist objective that does not reflect the consumer preference for social identity. We show how the welfarist government implements a tax policy to internalize the externalities arising from social norms, while the paternalist government uses tax policy to make individuals behave as if their preferences for social identity were absent.
Societies see growing support for populist politicians who advocate an end to globalization. Our behavioral economics model links impatience to voters’ appraisals of an income shock due to globalization that is associated with short-run costs and delayed gains. The model shows that impatient individuals may reject further globalization if they are subject to borrowing constraints. Using German data, we confirm that impatient voters choose right-wing antiglobalist parties. Similarly, we show for the United Kingdom that a preference for immediate gratification increases the support for right-wing anti-globalist parties as well as for Brexit. A policy implication of our study is that governments may use up-front redistribution to gain voters’ support for further globalization.
This paper develops a maximum likelihood (ML) bunching estimator of the elasticity of taxable income (ETI). Our structural approach provides a natural framework to simultaneously account for unobserved preference heterogeneity and optimization errors and for measuring their relative importance. We characterize the conditions under which the parameters of the model are identified and show that the ML estimator performs well in terms of bias and precision. The paper also contains an empirical application using Swedish data, showing that both the ETI and the standard deviation of the optimization friction are precisely estimated, albeit relatively small.
We propose a maximum likelihood (ML) based method to improve the bunching approach of measuring the elasticity of taxable income (ETI), and derive the estimator for several model settings that are prevalent in the literature, such as perfect bunching, bunching with optimization frictions, notches, and heterogeneity in the ETI. We show that the ML estimator is more precise and likely less biased than ad-hoc bunching estimators that are typically used in the literature. In the case of optimization frictions in the form of random shocks to earnings, the ML estimation requires a prior of the average size of such shocks. The results obtained in the presence of a notch can differ substantially from those obtained using ad-hoc approaches. If there is heterogeneity in the ETI, the elasticity of the individuals who bunch exceeds the average elasticity in the population.
We propose a maximum likelihood method to improve the bunching approach of estimating the elasticity of taxable income (ETI), and derive estimators for several model settings such as bunching with optimization frictions, notches, and heterogeneity in the ETI. Modelling optimization frictions explicitly, our estimators fit the data of several published studies very well. In the presence of a notch, the results can differ substantially from those obtained using the polynomial approach. If there is heterogeneity in the ETI, the elasticity among those who bunch exceeds the average elasticity in the population.
Measuring the elasticity of taxable income (ETI) is central for tax policy design. Yet, there are few arguments which support or infirm that current methods yield measurements of the ETI that can be trusted. Our first purpose is to use simulation methods to assess the bias and precision of the prevalent methods used in the literature (IV estimation and bunching methods). Thereby, we aim at (i) explaining the huge differences in empirical results, and (ii) providing arguments in favor of or against using these methods. Our second purpose is to suggest indirect inference estimation to improve the quality of the measurement. We find that the IV regression estimators may suffer from considerable bias and be quite imprecise, whereas the bunching estimators perform better in our controlled environment. We also show that using more of the information available in the data, estimators based on indirect inference principles produce more precise estimates of the ETI than any of the most commonly used methods.
The elasticity of taxable income (ETI) is a central statistic for tax policy design. One purpose of the present paper is to use Monte Carlo simulation techniques to assess the bias and precision of the prevalent estimators in the literature, the IV-regression estimator and the bunching estimator. Thereby, we aim to provide arguments in favor of, or against, using these methods. Another is to suggest indirect inference estimation to improve the quality of the measurement of the ETI. While IV-regression estimators perform well in terms of bias under certain conditions, they are more variable than bunching estimators. We also find that bunching estimators can be biased downward. The estimators based on indirect inference principles are practically unbiased and more precise than the other estimators.
Existing research on optimal taxation in economies with status-driven relative consumption assumes that the labor market is competitive, despite the fact that real world labor markets are typically characterized by involuntary unemployment. We show how the marginal tax policy ought to be modified to simultaneously account for positional consumption externalities and equilibrium unemployment, and find that interaction effects between these two market failures are crucial determinants of the marginal tax structure. In certain cases, the policy incentive to tax away positional externalities vanishes completely, and negative positional externalities may even lead to lower marginal taxation, under involuntary unemployment.
Existing research on optimal taxation in economies with status-driven relative consumption (implicitly) assumes that there is no involuntary unemployment, despite ample evidence that real world labor markets are typically characterized by such unemployment. We show how the marginal tax policy ought to be modified to simultaneously account for positional consumption externalities and equilibrium unemployment, and find that interaction effects between these two market failures are crucial determinants of the marginal tax structure. In certain cases, the policy incentive to tax away positional externalities vanishes completely, and negative positional externalities may even lead to lower marginal taxation, under involuntary unemployment.
In previous studies on public policy under relative-consumption concerns, leisure comparisons have been ignored. In this paper, we consider a two-type optimal non-linear income tax model, in which people care about both their relative consumption and their relative leisure. Increased consumption positionality typically implies higher marginal income tax rates for both ability types, whereas leisure positionality has an offsetting role. However, this offsetting role is not symmetric; concern about relative leisure implies a progressive income tax component (i.e., a component that is larger for the high-ability type than for the low-ability type). Leisure positionality does not modify the policy rule for public-good provision.
Much evidence suggests that people are concerned with their relative consumption. Yet, positional externalities have so far been ignored in savings-based indicators of sustainable development. This article examines the implications of relative consumption concerns for measures of sustainable development by deriving analogues to genuine saving when people are concerned with their relative consumption. Unless the positional externalities have been internalized, an indicator of such externalities must be added to genuine saving to arrive at the proper measure of welfare change. We also show how relative consumption concerns affect the way public investment ought to be reflected in genuine saving.
This paper analyzes Pareto-efficient marginal income taxation taking into account externalities induced through individual inequality aversion, meaning that people have preferences for equality. In doing so, we distinguish between four different and widely used models of inequality aversion. The results show that empirically and experimentally quantified degrees of inequality aversion have potentially very strong implications for Pareto-efficient marginal income taxation. It also turns out that the type of inequality aversion (self-centered vs. non-self-centered), and the specific measures of inequality used, matter a great deal. For example, based on simulation results mimicking the disposable income distribution in the U.S., the preferences suggested by Fehr and Schmidt (1999) imply monotonically increasing marginal income taxes, with large negative marginal tax rates for low-income individuals and large positive marginal tax rates for high-income ones. In contrast, the in many respects comparable model by Bolton and Ockenfels (2000) implies close to zero marginal income tax rates for all.
Recent evidence suggests that social comparisons between people in different countries have become more important over time due to globalization. This paper deals with optimal nonlinear income taxation in an international setting, where consumers derive utility from their relative consumption compared both with other domestic residents and people in another country. The optimal tax policy in our framework reflects both correction for positional externalities and redistributive aspects of such correction due to the incentive constraint facing each government. If the national governments behave as Nash competitors to each other, the resulting tax policy only internalizes the externalities that are due to within-country comparisons, whereas the tax policy chosen by the leader country in a Stackelberg game also to some extent reflects between-country comparisons. We also derive globally Pareto-efficient tax policies in a cooperative framework, and conclude that there are potentially large welfare gains of international tax policy coordination.
Recent empirical evidence suggests that between-country social comparisons have become more important over time. This paper analyzes optimal income taxation in a multi-country economy, where consumers derive utility from their relative consumption compared with both other domestic residents and people in other countries. The optimal tax policy in our framework reflects both correction for positional externalities and redistributive aspects of such correction due to the incentive constraint facing each government. If the national governments behave as Nash competitors to one another, the resulting tax policy only internalizes the externalities that are due to within-country comparisons, whereas the tax policy chosen by the leader country in a Stackelberg game also reflects between-country comparisons. We also derive a globally efficient tax structure in a cooperative framework. Nash competition typically implies lower marginal income tax rates than chosen by the leader country in a Stackelberg game, and cooperation typically leads to higher marginal income tax rates than the non-cooperative regimes.