Inflation and income inequality: A shopping-time approach

Our work is based on a heterogenous agent shopping-time economy in which economic agents present distinct productivities in the production of the consumption good, and differentiated access to transacting assets. The purpose of the analysis is to investigate whether this setting can lead to a positive correlation between inflation and income inequality. Our main result is to show that, provided the productivity of the interest-bearing asset in the transacting technology is high enough, it is true that a positive link between inflation and income inequality is generated. An example is offered to illustrate the mechanism.     

An alternative approach to income taxation

We take an alternative approach to income taxation in this paper. We view the income tax schedule as the outcome of a voting process, rather than the optimal choice of a “benevolent social planner”. We show that it is very likely for majority voting to lead to the adoption of a regressive income tax schedule, depending on the per capita government revenue requirement and the mean productivity of the population, which is in sharp contrast with the result derived from the traditional “benevolent social planner” approach to income taxation; and that given the adoption of a regressive income tax schedule, the income tax schedule would become less regressive as the ratio of the per capita government revenue requirement over the mean productivity of the population increases. Our work might shed some light on both the prevalent adoption of regressive state tax systems and the cross-state difference in terms of tax systems.     

The measurement of income mobility: A partial ordering approach

Summary. Given a set of longitudinal data pertaining to two populations, a question of interest is the following: Which population has experienced a greater extent of income mobility? The aim of the present paper is to develop a systematic way of answering this question. We first put forth four axioms for income movement-mobility indices, and show that a familiar class of measures is characterized by these axioms. An unambiguous (partial) ordering is then defined as the intersection of the (complete) orderings induced by the mobility measures which belong to the characterized class; a transformation of income distributions is “more mobile” than another if, and only if, the former is ranked higher than the latter for all mobility measures which satisfy our axioms. Unfortunately, our mobility ordering depends on a parameter, and therefore, it is not readily apparent how one can apply it to panel data directly. In the second part of the paper, therefore, we derive several sets of parameter-free necessary and sufficient conditions which allow one to use the proposed mobility ordering in making unambiguous income mobility comparisons in practice. Received: July 12, 1995; revised version: May 13, 1997     

Political economy of cross-border income shifting: A protection racket approach

Multinational firms often shift their incomes to low-tax jurisdictions, thus robbing host states of tax revenue. I offer a new theory to explain why some firms do this while others do not. I argue that firms that are more vulnerable to government expropriation are, counterintuitively, less likely to shift income offshore, since complying fully with tax law gives the government a greater stake in their survival. Analyzing a registry-based panel data on multinational firms, their tax burdens, and a cross-sectional information of the firms’ connections to tax havens, l find that, other things equal, firms with more concentrated fixed assets are less likely to use havens. These results challenge existing theories of the political economy of development. Whereas the “Pillars of Prosperity” theory suggests that successful states simultaneously develop protection of property rights and fiscal capacity, my results show that perfect property rights protection can actually undermine the state’s ability to tax.     

A new approach to the decomposition of the Gini income inequality ratio

The purpose of this research is to introduce a new approach to the decomposition of the Gini ratio into three components, supporting them with economic and statistical rigorous interpretations. The three components are: (i) the Gini inequalitywithin subpopulations; (ii) thenet contribution of the extended Gini inequalitybetween subpopulations; and (iii) the contribution of theintensity of transvariation between subpopulations. These components are weighted by the product of the population shares times the income shares of the corresponding subpopulations where the weights add to one.The decomposition introduced in this research is applied to the 1990 U.S. family income distribution. The population of families is disaggregated by types into the following subpopulations: (a) married-couple families; (b) male householder, no wife present; and (c) female householder, no husband present.     

A theory of ethnic diversity and income distribution: A legislative bargaining approach

In this paper, I examine how the two dimensions of income inequality and ethnic diversity affect the formation of political coalitions and the reallocation of income. I construct a legislative bargaining model to analyze when coalitions form along the income dimension and when it forms along the ethnic dimension. The results of the model suggest that the agenda setter selects a partner with a lower aggregate income: a smaller population size and a lower income level. Further, I extend the model from a one-round to a two-round game. The extended model shows that forming an oversized coalition is a possible equilibrium outcome and is consistent with the empirical findings.     

A matrix approach to the Gini index decomposition by subgroup and by income source

The literature offers two main ways of decomposing the Gini index: decomposition by population subgroup and by income source. This article proposes merging the two decomposition dimensions by suggesting a matrix formula for the Gini index which permits the simultaneous decomposition by subgroup and by income source. Using this multi‐decomposition, one can investigate the role of the interaction between the subgroup and the source components in determining the overall inequality. We apply the methodology to sample data on Italian household incomes collected in 2008.     

The response of household debt to income inequality shocks: a heterogeneous approach

This article explores the impact of changes in income inequality on household indebtedness using Pedroni's heterogeneous panel VAR. As a result, we find evidence in support of large cross-country heterogeneity in the responses of household leverage to income inequality shocks. We also find that such heterogeneity stems from differences in the strength of financial regulations and supervision.     

Options in income support for the aged: A critique of the two-tier approach

Support for the two-tier approach to income maintenance for the aged is becoming widespread. Two-tier formulas combine an income-conditioned bottom tier with an earnings-related top tier to achieve antipoverty and earnings replacement objectives. This paper first refutes the claim that the two-tier approach is generally more target-efficient in reaching the poor than is the earnings-related top tier with progressive replacement rates. Next, the paper compares the effectiveness of the two systems in terms of other goals. The paper concludes by showing that a top tier with a low tax on current income can virtually dominate a wide range of two-tier formulas.     

Permanent income hypothesis: An optimal control theory approach to a classical macro thesis

This paper investigates the extent by which the permanent income hypothesis (the normal income and the proportionality hypotheses) can be obtained by the optimal control approach with an explicit recognition of individual's rational behavior over time.     

构建我国综合个人所得税制的思考

一、引言随着改革开放的进一步深入,我国居民个人的收入水平在不断的提高,个人所得税作为调节收入差距的重要手段,在组织收入和发挥调节收入分配差距方面的作用越来越突出。典型国家为我国综合型个人所得税课税模式改革提供了许多的经验教训。因此,应在国际借鉴的基础上,以科学发展观为指导,积极地进行     

Globalization and income inequality: A panel data econometric approach for the EU27 countries

This paper investigates the relationship between income inequality and globalization, measured with both trade and financial variables. We estimate an econometric model using appropriate panel data techniques for the EU-27 countries over the period 1995–2009. The analysis is also performed at subgroups of countries within the EU27, such as the Core, Periphery, High Technology, and the New EU Member countries. Overall, the results suggest that trade openness exerts an equalizing effect, while financial globalization through FDI, capital account openness and stock market capitalization has been the driving force of inequality in the EU-27 since 1995. The highest contribution to inequality stems from FDI. Although the trade impact remained robust, disparities were observed in the financial globalization effects within a certain group or among country groups. The recent financial crisis led to a significant rise in inequality only in the EU-periphery and the New Member states. The impact from the other control variables was either minor or insignificant.     

Household willingness to pay and income pooling: A comment

We demonstrate some problems with Munro 2005 (“Household willingness to pay equals individual willingness to pay if and only if the household income pools”, Economics Letters 88, 227-230). Furthermore, we reconsider income pooling in a slightly changed framework and prove: Income pooling implies that household willingness to pay is equal to minimal individual willingness to pay. The converse is not true.     

The contribution of minimum wage valorization policy to the decline in household income inequality in Brazil: A decomposition approach

There is a vast literature that estimates the effect of the minimum wage on wage inequality in various countries. However, as the minimum wage directly affects nonlabor income of families in some countries (in the Brazilian case via the benefits of the pension system and of certain social programs), this article extends the empirical analysis by studying the effects of the minimum wage on the level of inequality of household income as a whole. To accomplish that we employ a decomposition method that gauges the contribution of the increases in the minimum wage that occurred in recent decades in Brazil through the labor and nonlabor sources of household income. The results show that the minimum wage had a contribution of 64 percent to the observed fall in income inequality between 1995 and 2014 and that pensions were the most relevant channel over this period.     

School tracking and intergenerational income mobility: Evidence from the Finnish comprehensive school reform

This paper estimates the effect of a major education reform on intergenerational income mobility. The Finnish comprehensive school reform of 1972–1977 replaced the old two-track school system with a uniform nine-year comprehensive school and shifted the selection of students to vocational and academic tracks from age 11 to age 16. We estimate the effect of this reform on the intergenerational income elasticity using a representative sample of males born between 1960 and 1966. The identification strategy relies on a differences-in-differences approach and exploits the fact that the reform was implemented gradually across the country during a six-year period. The results indicate that the reform reduced the intergenerational income elasticity by 23% from the pre-reform elasticity of 0.30 to post-reform elasticity of 0.23.     

Changes in health-related quality of life: a compensating income variation approach

This paper investigates the relationship between negative changes in health and life satisfaction, using a sample from the Household, Income and Labour Dynamics of Australia Survey. We use panel data models and estimate the life satisfaction impact of several different changes in health status to calculate the Compensating Income Variation (CIV) of them. Our work innovates with respect to the existing literature by using a more robust CIV method that takes account of the potential measurement error in income. Further, we produce the first set of monetary values for health losses using SF-6D utility values, one of the main measures used to estimate and value health change for economic evaluation. We show that negative changes in SF-6D are significantly associated with a reduction in life satisfaction, and the starting point matters: a drop of 0.1 in SF-6D score is associated with a decrease of 0.12 points in life satisfaction if the starting utility value is 0.8, but the effect is 100% higher if the SF-6D starting point is 0.7. More generally, we find that a 0.1 deterioration in SF-6D has a strong association with life satisfaction and that the CIV value is substantial (over US$ 120,000).     

Trade,environment, and income inequality: An optimal taxation approach

In a small open economy, how should a government pursuing both environmental and redistributive objectives design domestic taxes when redistribution is costly? And how does trade liberalization affect the economy's levels of pollution and inequalities, when taxes are optimally and endogenously adjusted? Using a general equilibrium model under asymmetric information with two goods, two factors (skilled and unskilled labor), and pollution, this paper characterizes the optimal mixed tax system (nonlinear income tax and linear commodity and production taxes/subsidies) with both production and consumption externalities. While optimal income taxes are not directly affected by environmental externalities, conditions are derived under which under‐ or over‐internalization of social marginal damage is optimal for redistributive considerations. Assuming that redistribution operates in favor of the unskilled workers and that the dirty sector is intensive in unskilled labor, simulations suggest that trade liberalization involves a clear trade‐off between the reduction of inequalities and the control of pollution when the source of externality is only production; this is not necessarily true with a consumption externality. Finally, an increase in the willingness to redistribute income toward the unskilled results paradoxically in less pollution and more income inequalities.     

The absolute health income hypothesis revisited: a semiparametric quantile regression approach

This paper uses the 1998–1999 Canadian National Population Health Survey data to examine the health–income relationship that underlies the absolute income hypothesis. To allow for nonlinearity and data heterogeneity, we use a partially linear semiparametric quantile regression model. The “absolute income hypothesis” is partially true; the negative aging effects appear more pronounced for the ill-healthy population than for the healthy population and when annual income is below 40,000 Canadian dollars. We would like to thank two anonymous referees and Baldev Raj, the editor, for useful and constructive comments and suggestions. The views expressed in this article are those of the authors and do not necessarily reflect the views of Statistics Canada. Both authors would also like to acknowledge financial support from SSHRC of Canada.     

Only income diverges: A neoclassical anomaly

The neoclassical growth model (NGM) is only consistent with the absolute divergence in output levels we observe if some determinants of steady state income are also diverging. In this paper we show that accumulation rates of physical and human capital are actually significantly converging, as are openness to trade and several variables measuring institutional quality. Output divergence in the face of input, policy and institutional convergence is a deep anomaly for the NGM.