Polarization and the decline of the middle class: Canada and the U.S.

Several recent studies have suggested that the distribution of income (earnings, jobs) is becoming more polarized. Much of the evidence presented in support of this view consists of demonstrating that the population share in an arbitrarily chosen middle income class has fallen. However, such evidence can be criticized as being range-specific—depending on the particular cutoffs selected. In this paper we propose a range-free approach to measuring the middle class and polarization, based on partial orderings. The approach yields two polarization curves which, like the Lorenz curve in inequality analysis, signal unambiguous increases in polarization. It also leads to an intuitive new index of polarization that is shown to be closely related to the Gini coefficient. We apply the new methodology to income and earnings data from the U.S. and Canada, and find that polarization is on the rise in the U.S. but is stable or declining in Canada. A cross-country comparison reveals the U.S. to be unambiguously more polarized than Canada.     

THE DECOMPOSITION OF INEQUALITY BY CLASS AND BY OCCUPATION:

Sociological research on earnings and income has focused on predicting individual income. Analyses most often use occupational status or class, along with other economically relevant variables, to explain earnings or income variations among individuals (income determination). Aggregate inequality (income distribution) has received considerably less attention, except in cross-national research. This especially holds for applying central concepts of stratification to the analysis of inequality. That is, class and occupation differences in economic rewards are rarely used to investigate aggregate earnings or income inequality. This study, using 1976 and 1977 Panel Study of Income Dynamics survey data, estimates the proportion of total earnings/income inequality accounted for by class and by occupation. Theil's index is used to measure earnings and income inequality and thus decompose total inequality into between-and within-group components. Wright's five-category schema is replicated for decomposition of inequality by class and a traditional four-category ordinal typology for decomposition by occupation. The two schemas show similar results: both class and occupation respectively account for between one-fifth and one-fourth of total earnings and income inequality. The results show the relevance of these central stratification typologies for the analysis of aggregate inequality.     

Farm Wives' Labor Force Participation and Earnings

Abstract The decisions of farm wives to work off the farm and the earnings they make in that off-farm employment should be considered simultaneously. Previous studies of wives' off-farm earnings have included only employed wives in their analyses of the factors affecting earnings, which results in biased estimates. This study tests, via Tobit analysis, a model which includes all farm wives and examines the effects of wives' human capital, farm and family constraints, and labor market characteristics on both their off-farm employment decisions and their earnings. Wives' off-farm earnings are found to be related to wives' education, labor market experience, presence of children, other family income, farm size, and debt/income ratio. Changes in these factors have a greater influence on the labor market participation decisions of farm wives than on the variation in their earnings, once employed.     

The influence of earnings on income distribution in the United States

This article discusses whether the so called “skill-biased technological change” hypothesis is able to explain the individual earnings inequality in the U.S. during the period 1968–2000. Using the statistic information supplied by the Census Bureau and the Bureau of Labor Statistics, the article analyzes the earnings evolution, explaining the reasons why earnings inequality has increased, and the relation of this increase with the household income distribution. The main conclusions are the following: (a) changes on labor productivity are not the main cause of the increase in earnings’ inequality, and (b) this earnings’ inequality is not the only reason for the increase of the households’ income inequality.     

Illustrating the Implications of How Inequality is Measured: Decomposing Earnings Inequality by Race and Gender

This paper makes three distinct contributions: it presents a novel modification to an established methodology for assessing inequality using the CPS ASEC data, it illustrates how valuable a multi-metric inequality analysis is by reconciling some open questions regarding the trend in inequality and the role of the composition of income along the distribution, and it provides a baseline assessment of the trend in earnings inequality for four distinct groups of income earners. The evolution of earnings inequality from 1995 to 2010 is compared to increasing inequality in total income as documented by Thomas Piketty and Emmanuel Saez to show that earnings inequality has followed a qualitatively similar, though less extreme trend. In the process, the disconnect between the trend in the Gini coefficient and inequality assessed via the share of income going to the top 1 % of income earners is reconciled through the use of several alternative inequality indices. Finally, the evolution of the earnings distribution for black women, black men, white women, and white men are considered separately, which shows that there are important differences in the experience of inequality. The main findings are that only white men have experienced changes in within-group earnings inequality that parallel the changes in inequality seen in the overall distribution. By contrast, black income earners have seen no notable increase in within-group inequality by any measure, suggesting that they may rightly perceive growing inequality as primarily a between-group phenomena.     

Money,Marriage, and Children: Testing the Financial Expectations and Family Formation Theory

Using data from the Fragile Families and Child Wellbeing Survey (N = 2,954), a birth cohort study, this work examines how gains in earnings and income are associated with marriage and subsequent childbearing for low‐income couples. Using change models, results indicate that positive changes in earnings, controlling for baseline levels of earnings, were associated with greater odds of marriage. Cohabiting couples who became poor were associated with a 37% decrease in marriage likelihood. Neither earnings nor income was affiliated with additional fertility. Results are consistent with the Financial Expectations and Family Formation theory, which posits that positive economic circumstances are necessary for marriage, but are not associated with subsequent childbearing.     

From classes to copulas: wages,capital, and top incomes

Public debates about the rise in top income shares often focus on the growing dispersion in earnings, and the soaring pay for top executives and financial-sector employees. But can the change in the marginal distribution of earnings on its own explain the rise in top income shares? Are top executives replacing capital owners in the group of top-income earners, or are we rather witnessing a fusion of top capital and top earnings? This paper proposes an extension of the copula framework and uses it for exploring the changing composition of top incomes. It illustrates that changes in top income shares can easily be decomposed into respective changes in the marginal distributions of labour and capital income and the changing association between the two types of income. An application using tax record data from Norway shows that the association between top labour and capital incomes grew stronger between 1995 and 2005 in the top half of the wage and capital income distribution, though it declined for the top 1% of capital income receivers. A gender decomposition demonstrates that the association of wage and capital incomes at the top is particularly striking for men, whilst women are largely under-represented in the top halves of the two marginal distributions.     

Improving the Measurement of the Relationship between Opportunities and Income: Evidence from Longitudinal Data from Chile

The relationship between exogenous circumstances faced in early childhood (opportunities) and earnings has been increasingly studied in the past decade. In this article we assess the sensitivity of this relationship to different income measures. Typically the empirical evidence is based on short‐term income measures that suffer from variability and measurement error. Using longitudinal data from Chile, we find that when four‐ and seven‐year earnings are used, the relationship between inequality of opportunity and income inequality is significantly higher than that obtained with yearly measures. Monte Carlo simulations with several data‐generating processes confirm this result. This supports policies targeted to reduce long‐term income inequality via providing equal opportunity to individuals at early stages in life.     

A Research Note on Family and Income Distribution: The Equalizing Impact of Married Women's Earnings in Metropolitan Brazil*

Using the 1985 Brazilian Annual Household Survey (PNAD), this study analyzes the extent to which the labor force participation of married women influenced familyincome inequality. The marginal impact on family earnings is decomposed into two components, one generated uniquely by differences in earnings inequality between spouses and another produced by imperfect assortive mating on spouses' earnings. Results show that the correlation among spouses' earnings is significantly less than one (0.4), and that the level of earnings inequality is more than 50 percent higher among wives than husbands. Because these forces are offsetting, wives' labor income has a negligible impact on family-income inequality in Brazil. The results demonstrate the importance of isolating the influence of imperfect assortive mating from that due to inequality in earnings between men and women.     

Redistributing Income and Relative Efficiency

This article considers the relative efficiency of marginally redistributing income from high- to low-income households. Additional spending on a negative income tax is compared with spending on an earnings or a wage subsidy. One set of reforms imposes the same burden on the nonpoor, and another set redistributes the same net benefit to the working poor. Additional spending on a negative income tax is more efficient than spending a similar amount on an earnings subsidy (the Earned Income Tax Credit), for some reforms and parameters. The wage subsidy is the most efficient, independent of parameters or type of reform.     

Income taxation and the allocation of market labor

The allocation of work effort within the market economy will be unaffected by taxation if all returns from labor market activity are taxed equally. However, if the earnings from certain types of market employment are taxed at relatively lower rates, labor will shift into these areas until after-tax earnings are equal across all types of employment. This paper presents evidence suggesting that income taxation induces labor to move from high- to low-tax geographic areas and from wage and salaried jobs into self-employment activities. By affecting the allocation of market labor, the income tax generates a welfare loss in addition to that resulting from the tax’s effect on total work effort.     

Labor Migration,Remittances and Household Income: A Comparison between Filipino and Filipina Overseas Workers1

The major purpose of the research is to examine gender differences in patterns of labor market activity, economic behavior and economic outcomes among labor migrants. While focusing on Filipina and Filipino overseas workers, the article addresses the following questions: whether and to what extent earnings and remittances of overseas workers differ by gender; and whether and to what extent the gender of overseas workers differentially affects household income in the Philippines. Data for the analysis were obtained from the Survey of Households and Children of Overseas Workers (a representative sample of households drawn in 1999–2000 from four major “labor sending” areas in the Philippines). The analysis focuses on 1,128 households with overseas workers. The findings reveal that men and women are likely to take different jobs and to migrate to different destinations. The analysis also reveals that many more women were unemployed prior to migration and that the earnings of women are, on average, lower than those of men, even after controlling for variations in occupational distributions, country of destination, and sociodemographic attributes. Contrary to popular belief, men send more money back home than do women, even when taking into consideration earnings differentials between the genders. Further analysis demonstrates that income of households with men working overseas is significantly higher than income of households with women working overseas and that this difference can be fully attributed to the earnings disparities and to differences in amount of remittances sent home by overseas workers. The results suggest that gender inequal‐     

Relative Spousal Earnings and Marital Happiness Among African American and White Women

The distinctive economic histories of African American and White wives suggest that involvement in household income production holds contextually situated unique meanings for these groups. Yet research has not addressed racial differences in the effects of relative earnings on marital well‐being. Surveying 431 employed wives in 21 U.S. cities, we found that wife‐to‐husband income ratio and marital happiness were negatively associated when women held traditional values, but in racially distinct ways. Among White women only, a negative association between income ratio and marital happiness was reversed when financial need was reported. Findings are discussed in terms of variability in the meaning of wives’ earnings as a function of situational, historical, and sociocultural dynamics.     

The difference between wages and wage potentials: Earnings disadvantages of immigrants in Germany

Immigrants in Germany have poor earnings performance relative to natives. Claiming that human-capital endowments determine earnings potentials rather than actual earnings, a stochastic earnings frontier is estimated and used to seek systematic differences between natives and migrants for GSOEP data for the year 2000. While empirical results clearly support the frontier assumption, natives and immigrants are surprisingly about the same with respect to the frontier. Assuming a half-normal distribution of the wage gap, on average, both groups transform a modest 84% share of their potential income into market earnings. This implies wage inequality can be attributed to human-capital differentials alone. The human-capital endowments of immigrants are largely determined by the very low percentage who have college degrees, their slow assimilation and zero-return on imported experience. The paper also tries to explain individual wage gaps, which are significantly decreased in married subjects raising families, but increased in employees in small- or medium-sized relative to larger firms. However, these variables only make minor contributions to the variance.     

The influence of motherhood on income: do partner characteristics and parity matter?

Although the economic independence of women has been greatly advanced in recent decades, it continues to lag far behind men’s in the Netherlands and elsewhere. The negative consequences of motherhood are an important driving force behind women’s abiding lower income. Although mother’s lower earnings have received a substantial amount of attention from scholars and the underlying mechanisms are well established, surprisingly little is known about mitigating factors. This article contributes to the literature by investigating how the earnings disadvantage of mothers is affected by partner characteristics and by parity. We formulate hypotheses about the effect of a partner’s working hours, his earnings and his gender role orientations, on the earnings disadvantage associated with motherhood. Furthermore, we examine the role of parity in this earnings disadvantage. Our hypotheses are tested using longitudinal data from the first three waves of the Netherlands Kinship Panel Study. Our hypotheses concerning partner characteristics are not supported. The earnings disadvantage of mothers is hardly affected by them. We do find that parity matters greatly in examining the effect that motherhood has on women’s earnings. The transition to motherhood has a much larger effect on earnings than the birth of subsequent children. The implications of these findings and the specificity of the Dutch context are discussed.     

Distribution, Inequality and Concentration of Incomeamong Older Immigrants in Canada

While there are many studies on differences in earnings between immigrants and the native‐born or among immigrant groups, they do not consider distribution and concentration of income among immigrants explicitly. These aspects are important for understanding the distribution of economic welfare and consumer behaviour among members and hence are policy relevant. Using the 1991 Census data, the distribution and concentration of incomehave been examined among 15 broad birthplace groups for population aged55 years and over. About 19 per cent of males and 15 per cent of femalesreceive less than half the median income and obtain 5 per cent and 3 per centof the aggregate income respectively. About 30 per cent of males and29 per cent of females receive more than one and half times the medianincome and obtain 61 per cent and 59 per cent of aggregate incomerespectively. About 51 per cent of males and 56 per cent of females whoreceive incomes between half and one and half times the median income aretermed middle‐class and their shares of aggregate income amount to 34 and38 per cent respectively. Although older immigrants aged 55 years and over, as a group, have roughlythe same quartile distribution and concentration of income as theirCanadian‐born counterparts, the birthplace groups differ considerably.Those from the developing regions, that is, the groups that have loweraverage annual incomes, also have more inequitable distribution of incomethan the Canadian‐born or their counterparts from the developed regions. Thus, income distribution is more polarized in populations from developingregions than in populations from developed regions or in the Canadian‐bornpopulation. On average, females receive 45 per cent less income than males, and thereis less polarization of income among them than among males regardless ofthe place of birth. A part of the explanation lies in the receipt of government transfers, whichtend to equalize rather than polarize incomes, and older women derive ahigher proportion of their income from government transfers than older men.     

Earnings and Expenditures on Household Services in Married and Cohabiting Unions

Despite the rise in women’s paid employment, little is known about how women and their partners allocate money to outsource domestic tasks, especially in unmarried unions. Tobit analyses of 6,170 married and cohabiting couples in the 1998 Consumer Expenditure Survey test hypotheses that recognize gender inequality between partners, gender typing of household tasks, and differences between cohabitation and marriage. Women’s earned income is more important than men’s for spending on female tasks. Men’s earnings are not more important for male tasks, but the earnings of married men are more strongly linked to expenditures on female tasks than are the earnings of cohabiting men. The research indicates that working women leverage their earnings to reduce their domestic burden through outsourcing.     

Horizontal Inequities in the German Tax-Benefit-System: The Case of Two Wage-Earner Employee Households

The question of how horizontal equity between families in the tax-benefit-system is affected by the within-household distribution of earnings has not been systematically analyzed so far. Using an arithmetic model accounting for all relevant parts of the German tax-benefit-system we explored this aspect in detail. From our calculations it became evident that the combined burden of taxes, social security contributions, and transfers was significantly affected by the distribution of earnings between spouses and that the effect differs with respect to total household income. Overall, the German tax-benefit-system favors an unequal income distribution within the household. Applying the model on empirical data taken from the most recent German Income and Expenditure Survey, we were able to quantify these effects. According to our results, total disposable income of the households analyzed would increase by about €5.5 billion per year if all wage income within households would be allocated to a single-earner.     

Can earnings equations estimates improve CPS hot-deck imputations?

Some participants in income and labor market surveys fail to report their earnings. We use data on imputed and reported wages for the same workers, taken from the 1988 change in the CPS processing system to compare actual earnings to both hotdeck and earnings-equations imputations. Our results indicate that failure to correct for non-participation is a serious and continuing problem in the current CPS processing system.     

The sensitivity of income polarization

This study looks at polarization and its components’ sensitivity to assumptions about equivalence scales, income definition, ethical income distribution parameters, and the income accounting period. A representative sample of Danish individual incomes from 1984 to 2002 is utilised. Results show that polarization has increased over time, regardless of the applied measure, when the last part of the period is compared to the first part of the period; primary causes being increased inequality (alienation) and faster income growth among high incomes relative to those in the middle of the distribution. Increasing the accounting period confirms the reduction in inequality found for shorter periods, but polarization is virtually unchanged, because income group identification increases. Applying different equivalence scales does not change polarization ranking for different years, but identification ranks are affected. The welfare state considerably reduces income polarization and inequality, but at the expense of some more identification.