The incentive for working hard: explaining hours worked differences in the US and Germany

This paper seeks to explain the greater hours worked by Americans compared to Germans in terms of forward-looking labor supply responses to differences in earnings inequality between the countries. We argue that workers choose current hours of work to gain promotions and advance in the distribution of earnings. Since US earnings are more unequally distributed than German earnings, the same extra work pays off more in the US, generating more hours worked. Supporting this inequality–hours hypothesis, we show that in both countries hours worked is positively related to earnings inequality in cross-section occupational contrasts and that hours worked raises future wages and promotion prospects in longitudinal data.     

The cyclicality of effective wages within employer-employee matches in a rigid labor market

This study analyzes real wage cyclicality for male full-time workers within employer-employee matches in Germany over the period 1984-2004. Five different wage measures are compared: the standard hourly wage rate; hourly wage earnings including overtime and bonus pay; the effective wage, which takes into account unpaid overtime; and monthly earnings, with and without additional pay. None of the hourly wage measures exhibits cyclicality except for the group of salaried workers with unpaid overtime. Their effective wages show a strongly procyclical reaction to changes in unemployment. Despite acyclical wage rates, salaried workers without unpaid overtime experienced procyclical earnings movements if they had income from extra pay. Monthly earnings were also procyclical for hourly paid workers with overtime pay. These findings suggest that cyclical earnings movements are generated by variable pay components, such as bonuses and overtime pay, and by flexible working hours. The degree of earnings procyclicality revealed for the German labor market is comparable to the United States.     

The effects of multiple minimum wages throughout the labor market: The case of Costa Rica

This paper investigates the effects of legal minimum wages on employment and hours worked among workers covered by minimum wage legislation as well as those for whom it does not apply (the uncovered sector) in Costa Rica. This country's large uncovered sector and complex minimum wage policy, which has for decades set numerous wages throughout the wage distribution, provide a stimulating counterpoint to the U.S. framework for the analysis of the impact of minimum wages. Using 1988–2000 micro data, we find that a 10% increase in minimum wages lowers employment in the covered sector by 1.09% and decreases the average number of hours worked of those who remain in the covered sector by about 0.6%. We do not find a significant impact on hours worked in the uncovered sector. Finally, we show that despite the wide range of minimum wages, the largest impact on the employment of covered sector workers is in the lower half of the skill distribution.     

What is the most flexible component of wage bill adjustment? Evidence from Belgium

This paper decomposes wage bill changes at the firm level into components due to wage changes, and components due to flows of employment. It relies on an administrative matched employer–employee dataset of individual earnings merged with firms' annual accounts for Belgium over the period 1997–2001. The results are in line with what one would expect in a downward wage rigidity environment. On average, wage bill contractions result essentially from employment cuts in spite of wage increases. Wage growth of job stayers is moderated but positive; and wages of entrants compared with those of incumbents are no lower. The labour force cuts are achieved through both reduced entries and increased exits, due to more layoffs, especially in smaller firms, and wider use of early retirement, especially in manufacturing. In addition, the paper points out the role of overtime hours, temporary unemployment and interim workers in adapting hours worked to economic circumstances.     

Men's wage inequality in Serbia's transition

Wage inequality is considered to have been quite compressed in socialist economies. In this paper I analyse how men's wage inequality has changed during the period of transition to a market economy in Serbia, a country which has experienced a particularly dramatic transition. Changes in the distribution of earnings are examined using the Lemieux (2002) decomposition methodology and five annual Labour Force Surveys (2001–2005). I find that the change in wage inequality is mostly driven by changes in wage premiums, while the effect of changes in the composition of the labour force is very small. Isolating the effect of the emerging private sector reveals that changes in the private sector size and wage premium account for an average 25 per cent of the changes in inequality during this period. Moreover, the minimum wage is found to exert a dampening effect on wage inequality.     

Workers or Employers: Who is Shaping Wage Inequality?

An extensive micro data set matching firms, establishments and their employees, is used to study the determinants of earnings inequality in Portugal and its evolution from 1983 to 1992, with the Theil index, its decomposition, and the decomposition of its change as tools of analysis. The relevance of both worker and employer attributes in shaping earnings inequality and its trend is quantified. The impact of the firm on wage inequality in a European country is compared to the situation in the USA, and the results suggest that a more regulated and centralized European bargaining system might reduce the scope for firm action. A profile of an economy undergoing modernization, where rising labour market inequality signalled the lack of an adequate labour force, can be drawn, with the minimum wage having nonetheless a certain narrowing effect on the earnings distribution.     

Welfare-improving policy on medical tourism and labor productivity: A theoretical analysis

This paper considers welfare and wage inequality effects of developing medical tourism on the host country from a theoretical point of view. Due to the competition between public healthcare provision and medical tourism, the development of medical tourism might reduce labor productivity and thus widen wage inequality via the increased wage rates of healthcare workers and decreased wage rates of production workers. In addition, the expansion of medical tourism can lower social welfare of the host country through a decline in labor productivity caused by reduced public healthcare provision. A tax-subsidy welfare-improving scheme is suggested to mitigate the unfavorable productivity effect of medical tourism on the host economy. This theoretical result fits into current empirical evidence on medical tourism.     

The ambiguous effect of minimum wages on hours

In a competitive model we ease the assumption that efficiency units of labour are the product of hours and workers. We show that a minimum wage may either increase or decrease hours per worker and the change will have the opposite sign to the slope of the equilibrium hours hourly wage locus. Similarly, total hours worked may rise or fall. We illustrate the results throughout with a Cobb-Douglas example.     

Economic and Social Factors in Income Inequality: Race and Sex Discrimination and Status as Elements in Wage Differentials

Abstract . This paper examines by the use of several econometric techniques some of the economic and social factors in wage differentials as elements in income inequality. The effects of education, sex, occupation, class of workers, industry, race, marital status, hours and weeks worked, and age are analyzed by the use of regression analysis in conjunction with binary variables and joint tests of significance. The results show that the inclusion of the sex variable represents a significant improvement over previous economic models and that it is not the number of years of education that is important but rather the obtaining of academic degrees.     

Youth minimum wage reform and the labour market in New Zealand

This paper analyses the effects of a large reform in the minimum wages affecting youth workers in New Zealand since 2001. Prior to this reform, a youth minimum wage, applying to 16–19 year-olds, was set at 60% of the adult minimum. The reform had two components. First, it lowered the eligible age for the adult minimum wage from 20 to 18 years, and resulted in a 69% increase in the minimum wage for 18 and 19 year-olds. Second, the reform raised the youth minimum wage in two annual steps from 60% to 80% of the adult minimum, and resulted in a 41% increase in the minimum wage for 16 and 17 year-olds over a two-year period. We estimate the impact of this reform by comparing average outcomes for these two groups of teenagers, before and after the change, to those for 20–25 year-olds, who were unaffected by the reform. We find no evidence of adverse effects on youth employment immediately following the reform, but some weak evidence of employment loss by 2003. We also find evidence of a 10–20% increase in hours worked following the reform for employed 16–17 year-olds, and up to a 10% increase for employed 18–19 year-olds, depending on the specification adopted. Combined, wage, hours, and employment changes lead to significant increases in labour earnings and total income of teenagers relative to young adults. However, we also find evidence of a decline in educational enrolment, and an increase in unemployment, inactivity, and benefit receipt rates, suggesting that while the minimum wage reform increased the labour supply of teenagers, this increase was not matched by as large an increase in employment.     

Public–private wage gap in Latin America (1992–2007): A matching approach

Using matching methods, we estimate the public–private wage gap for urban workers in eleven Latin American countries for the 1992–2007 period. These methods do not require any estimation of earnings equations and hence no validity-out-of-the-support assumptions; furthermore, this approach allows us to estimate not only the average wage gap but also its distribution. Our main findings indicate that the average public sector worker earns more than his/her private counterpart, and that this differential increased over the 1992–2007 period. Important differences along the wage distribution are also shown in the results; in fact, public servants in the highest percentiles of the wage distribution generally earn less than their private sector equivalents. Nonetheless, the percentile at which a positive wage gap becomes a wage penalty shifted over the period as the average wage gap experienced by most countries widened. Still, the most qualified public sector workers do face a wage penalty. Furthermore, indicators of government effectiveness show no relationship with the country ranking according to the public–private wage gap.     

Winners and losers after 25 years of transition: Decreasing wage inequality in Slovenia

Over the past twenty-five years, wage inequality has fallen in Slovenia, even as it has risen in most developed economies. The rates of return to education and work experience rose and remained high on average. However, rapid increases in the number of college graduates have outpaced the rising relative demand for skill among the youngest labor market entrants. As a result, the youngest cohorts of college graduates have experienced declining returns to education and a downward shift in their occupational distribution, which has not been experienced by older college graduates. These changes coincide with the implementation of the Bologna Reform, which reduced the length of time necessary to complete a bachelor’s degree and contributed to the incentives to attend college. Falling returns to tertiary education contributed to declining within-cohort wage inequality among the young, which was large enough to reduce overall wage inequality.     

Wage inequality, technology and trade: 21st century evidence

This paper describes and explains some of the principal trends in the wage and skill distribution in recent decades. Increases in wage inequality started in the US and UK at the end of the 1970s, but are now widespread. A good fraction of this inequality trend is due to technology-related increases in the demand for skilled workers outstripping the growth of their supply. Since the early 1990s, labor markets have become more polarized with jobs in the middle third of the wage distribution shrinking and those in the bottom and top third rising. I argue that this is because computerization complements the most skilled tasks, but substitutes for routine tasks performed by middle wage occupations such as clerks, leaving the demand for the lowest skilled service tasks largely unaffected. Finally, I argue that technology is partly endogenous, for example it has been spurred by trade with China. Thus, trade does matter for changes in the labor market, but through a different mechanism than conventionally thought.     

Working hours in Chinese enterprises: evidence from matched employer–employee data

The purpose of this article is to explore the factors that are correlated with hours worked in China. A distinguishing feature of the study is that we used representative‐matched employer and employee data. Hence, in addition to the usual worker characteristics examined in conventional economic models of labour supply, we also took into account the influence of firm characteristics and policies on the number of hours worked. The results suggested that in addition to the hourly wage rate, labour supply characteristics and human capital characteristics of the individual, firm‐level differences are important in explaining variation in weekly hours worked in Chinese firms. In particular, our results suggested that there is a norm of longer working hours in firms that employ a high proportion of female and migrant workers, that hours worked are less in firms which pay overtime and that hours worked are less in firms in which labour disputes have disrupted production. The policy implications of Chinese firms reducing hours worked were discussed.     

Spatial changes in labour market inequality

We study spatial changes in labour market inequality for US states and MSAs using Census and American Community Survey data between 1980 and 2010. We report evidence of significant spatial variations in education employment shares and in the college wage premium for US states and MSAs, and show that the pattern of shifts through time has resulted in increased spatial inequality. Because relative supply of college versus high school educated workers has risen faster at the spatial level in places with higher initial supply levels, we also report a strong persistence and increased inequality of spatial relative demand. Bigger relative demand increases are observed in more technologically advanced states that have experienced faster increases in R&D and computer usage, and in states where union decline has been fastest. Finally, we show the increased concentration of more educated workers into particular spatial locations and rising spatial wage inequality are important features of labour market polarization, as they have resulted in faster employment growth in high skill occupations, but also in a higher demand for low wage workers in low skill occupations. Overall, our spatial analysis complements research findings from labour economics on wage inequality trends and from urban economics on agglomeration effects connected to education and technology.     

Unionization and the Pattern of Nonunion Wages: Evidence for the UK

This paper presents the first examination of the effect of unionisation on the distribution of nonunion wages in the UK. We test a hypothesis that has received considerable attention in the US: that the threat of unionisation leads nonunion firms to increase the earnings of their lowest paid workers, so compressing their internal wage distribution. In aggregate we find little support for this hypothesis in the UK and suggest that the supportive evidence from the US may be a function of the absence of suitable linked employer-employee data.     

TRADE UNIONS AND THE DISPERSION OF EARNINGS IN BRITISH ESTABLISHMENTS, 1980–90†

ABSTRACT The relationship between unions and earnings dispersion is examined using establishment-level data from the 1980, 1984 and 1990 Workplace Industrial Relations Surveys. Initially the cross-sectional relationship is examined using the 1990 data. The earnings dispersion of skilled and semiskilled workers is seen to be lower across unionized establishments than across non-union establishments; secondly, within-establishment earnings dispersion is lower in plants which recognize trade unions for collective bargaining purposes than in those that do not. All three surveys are then utilized to ascertain to what extent the decline in unionization in Britain has contributed to the rise in earnings inequality of semi-skilled workers. There was a sizeable and important widening of the gap in the dispersion of earnings across union and non-union plants between 1980 and 1990. For semi-skilled earnings, the decline in the share of plants with recognized unions can account for 11-17 percent of the rise in earnings inequality over this time period. The importance of falling union activity (as measured by union recognition) seemed to accelerate through the 1980s. Between 1980 and 1984 the relatively small falls in aggregate recognition explain less than 10 percent of the inequality increase, whereas between 1984 and 1990 about one-quarter of the increase can be accounted for by the fall in unionization. The majority of the rise in earnings inequality is, however, due to a large increase in earnings dispersion across non-union establishments.     

The effect of the minimum wage on employment and hours

This study examines the effect of minimum wage increases on teen hours of work and employment using both state- and individual-level panel data in the US. The state-level results indicate that minimum wage increases may lower employment rates but do not adversely affect hours among either working teens or all teens. The individual-level results do not indicate that minimum wage increases have a significant negative effect on hours worked by low-wage teens who are likely to be affected by a minimum wage increase. The results suggest that low-wage teens are less likely to remain employed, relative to high-wage teens, when the minimum wage is raised. However, this adverse effect disappears when these low-wage teens are compared to other low-wage teens during periods when the minimum wage did not increase.     

Consequences of self-employment for women and men in the United States

Many self-employed workers return to the wage and salaried sector of the labor market after some time. It is possible that the self-employment spell will lead to lower earnings or earnings growth upon return, due to depreciation of firm or sector-specific human capital. Using longitudinal data from the National Longitudinal Survey of Young Women (NLS), this paper examines the effects of spells of self-employment on the future wage and salary sector earnings of male and female workers in the United States. The results indicate substantial penalties arise for women, in terms of returns to experience, while there is little or no impact for men.     

Earnings Distribution and Labour Supply after a Retirement Earnings Test Reform*

Norwegian administrative data are used to evaluate the impact of a doubling of the threshold in the retirement earnings test. We find almost no impact on the extensive margin, but a positive effect on the intensive margin. This positive effect is uneven over the earnings distribution, and concentrated on workers around the threshold, increasing with exposure to the reform and leading to a decrease in earnings inequality. Individuals who remain active until retirement age respond more to the reform. Conditional on prereform earnings, we find little evidence that individual characteristics such as working histories influence the responsiveness to the reform.