Empirical evidence on occupation and industry specific human capital

This paper presents instrumental variables estimates of the effects of firm tenure, occupation specific work experience, industry specific work experience, and general work experience on wages using data from the 1979 Cohort of the National Longitudinal Survey of Youth. The estimates indicate that both occupation and industry specific human capital are key determinants of wages, and the importance of various types of human capital varies widely across one-digit occupations. Human capital is primarily occupation specific in occupations such as craftsmen, where workers realize a 14% increase in wages after five years of occupation specific experience but do not realize wage gains from industry specific experience. In contrast, human capital is primarily industry specific in other occupations such as managerial employment where workers realize a 23% wage increase after five years of industry specific work experience. In other occupations, such as professional employment, both occupation and industry specific human capital are key determinants of wages.     

Noncognitive skills, occupational attainment, and relative wages

This paper examines whether men's and women's noncognitive skills influence their occupational attainment and, if so, whether this contributes to the disparity in their relative wages. We find that noncognitive skills have a substantial effect on the probability of employment in many, though not all, occupations in ways that differ by gender. Consequently, men and women with similar noncognitive skills enter occupations at very different rates. Women, however, have lower wages on average not because they work in different occupations than men do, but rather because they earn less than their male colleagues employed in the same occupation. On balance, women's noncognitive skills give them a slight wage advantage. Finally, we find that accounting for the endogeneity of occupational attainment more than halves the proportion of the overall gender wage gap that is unexplained.     

公共投资就业效应的一个解释——基于CES生产函数的分析及其检验

本文在分析CES生产函数过程中引入劳动力市场,探讨了公共投资与就业的联系.本文认为,公共投资是通过劳动工资弹性来影响就业的.公共投资增加会引起劳动需求的工资弹性提高,而公共投资的溢出效应则会导致企业实际工资支出水平降低,两方面原因的共同作用引起就业的增长.在此分析基础上,本文用ARDL方法构建了一个多方程模型,并用中国的数据进行了检验.为提高分析的有效性,我们用SUR方法对模型做了系统估计,并进一步通过方程转化对变量的短期波动和长期均衡关系进行了探讨.实证研究发现,中国的公共投资增长在短期减少就业,但长期内对就业有显著的正效应.     

The distribution of changes in manufacturing employment and the impact of the minimum wage

That employment for workers in durable goods industries is more sensitive to the pace of economic activity than for non-durable goods employees is not a surprising result. What is noteworthy about the conclusions of this study, however, is the manner in which increases in the minimum wage have altered the distribution of employment and sensitivity to short-run changes in employment of production workers in manufacturing industries. By focusing on the distribution of employment and how that distribution changes over the cycle, estimates of some aspects of the impact of the minimum wage that have not previously been analyzed have been developed.The evidence indicates that increases in the minimum wage over the period 1947–1975 have had a significant impact on employment patterns. Minimum wage legislation has had the effect of decreasing the share of projected employment and increasing vulnerability to cyclical changes in employment for the group of workers most ‘marginal’ to the work force low-wage industry employees. Hence, as a result of increased minimum wages, low-wage industry employees are able to obtain fewer jobs during periods of normal employment growth and their jobs are less secure in the face of short-run employment variations.Minimum wage legislation has undoubtedly resulted in higher wages for some of the relatively-low-productivity workers who were able to obtain employment than these workers would have received in its absence. The cost in terms of lost employment opportunities and cyclical vulnerability of jobs, however, has apparently been borne most heavily by low-wage industry employees. The primary beneficiaries of the shifts in the pattern of employment shares occasioned by minimum wage increases were high-wage industry workers, particularly in the ordnance, food, tobacco, and petroleum industries.     

A micro-level insight on trade-induced job polarization and poverty in Russia

The effect of trade liberalization on workers with different skill levels at distinct types of firms is often surmised to be heterogeneous. This paper employs a longitudinal individual-level dataset—the Russian Longitudinal Monitoring Survey (RLMS)—to study the impact of trade liberalization on the relative poverty of various groups of workers in Russia. More specifically, we use the country’s accession to the World Trade Organization (WTO) as a quasi-natural experiment to analyze the impact of trade liberalization on workers at different skill levels and types of firms. Our analysis reveals significant trade-induced job polarization, meaning that, in the tradable sector, even though employment and wages are increasing for low-wage and the high-wage occupations, they are shrinking for mid-wage occupations, leading to a higher poverty rate for workers seeking employment in mid-wage occupations in that sector. Our results are robust to a battery of robustness checks, and they point to the crucial role of state-owned enterprises in attenuating the adverse effects of trade shocks on the welfare of workers.     

OFFSHORING, MULTINATIONALS AND LABOUR MARKET: A REVIEW OF THE EMPIRICAL LITERATURE

Abstract.  This paper reviews the empirical literature on the effects of offshoring and foreign activities of multinational enterprises on developed countries' labour markets. Results suggest that material offshoring worsens wage inequality between skilled and unskilled workers; it also seems to make employment more volatile, by raising the elasticity of labour demand and the risk of job losses. Service offshoring exerts at most small negative effects on total employment, and changes the composition of the workforce in favour of high-skilled white-collar employees. Multinationals tend to substitute domestic and foreign labour in response to changes in relative wages across countries; substitutability is weak, however, and mainly driven by horizontal, market-seeking foreign direct investments.     

Do temporary agency workers affect workplace performance?

Using nationally representative workplace data we find the use of temporary agency workers (TAW) is positively associated with financial performance in the British private sector and weakly associated with higher sales per employee. However TAW is not associated with value added per employee. Employees in workplaces with TAW receive higher wages than observationally equivalent employees in non-TAW workplaces. But the presence of TAW in the employee’s occupation is associated with lower wages for employees in that occupation. Furthermore, conditioning on wages, the presence of TAW at the workplace is associated with lower job satisfaction and higher job anxiety among employees. These findings are consistent with TAW having an adverse effect on employees’ experiences at work, perhaps due a more labour intensive regime, one which is only partly compensated for with higher wages.     

Minimum wages,wages and employment in various sectors in Honduras

This paper contributes to our understanding of the impact of minimum wages on labor markets of developing countries, where there are often multiple minimum wages and compliance is weak. We examine how changes in more than 22 minimum wages over 1990–2004 affect employment, unemployment and average wages of workers in different sectors, defined by coverage under the legislation. The evidence suggests that minimum wages are effectively enforced only in medium and large-scale firms, where a 1% increase in the minimum wage leads to an increase of 0.29% in the average wage and a relatively large reduction in employment of ? 0.46%. We find that public sector wages emulate minimum wage trends but the higher cost of labor does not reduce employment there. There are no discernable effects of minimum wages on the wages of workers in small-firms or the self-employed; yet, higher minimum wages may create more unemployment. We conclude that (even under our upper bound estimate of the effect on the wages of workers) the total earnings of workers in the large-firm covered sector fall with higher minimum wages in Honduras, which warrants a policy dialogue on the structure and level of minimum wages.     

Urban agglomeration effects and employment and wage gradients

When employment occurs at both central and non-central points, but firms have a preference to be near the center, the rent gradient will decline, and a wage gradient is necessary to compensate workers for more centrally located employment. Wage gradients and rent gradients are jointly determined. The relationship between wage offer functions and the equilibrium wage gradient is derived, the latter dependent on utility functions and commuting costs. This is illustrated with a two sector model incorporating agglomeration economies in the export sector. Numerical solution reveals how agglomeration economies affect wages, employment, and city size.     

The impact of minimum wages on wages,work and poverty in Nicaragua

In this paper we use an individual- and household-level panel data set to study the impact of changes in legal minimum wages on a host of labor market outcomes including: a) wages and employment, b) transitions of workers across jobs (in the covered and uncovered sectors) and employment status (unemployment and out of the labor force), and c) transitions into and out of poverty. We find that changes in the legal minimum wage affect only those workers whose initial wage (before the change in minimum wages) is close to the minimum. For example, increases in the legal minimum wage lead to significant increases in the wages and decreases in employment of private covered sector workers who have wages within 20% of the minimum wage before the change, but have no significant impact on wages in other parts of the distribution. The estimates from the employment transition equations suggest that the decrease in covered private sector employment is due to a combination of layoffs and reductions in hiring. Most workers who lose their jobs in the covered private sector as a result of higher legal minimum wages leave the labor force or go into unpaid family work; a smaller proportion find work in the public sector. We find no evidence that these workers become unemployed.Our analysis of the relationship between the minimum wage and household income finds: a) increases in legal minimum wages increase the probability that a poor worker's family will move out of poverty, and b) increases in legal minimum wages are more likely to reduce the incidence of poverty and improve the transition from poor to non-poor if they impact the head of the household rather than the non-head; this is because the head of the household is less likely than a non-head to lose his/her covered sector employment due to a minimum wage increase and because those heads that do lose covered sector employment are more likely to go to another paying job than are non-heads (who are more likely to go into unpaid family work or leave the labor force).     

THE IMPACT OF LABOR MARKET REGULATION ON EMPLOYMENT IN LOW‐INCOME COUNTRIES: A META‐ANALYSIS

Controversy over labor market policy often centers on achieving a balance between preventing worker exploitation, and avoiding loss of productivity or employment through excessive regulation. Although the literature documenting the impact of labor market regulation on employment is extensive, there is a dearth of evidence on the impact of such policies in low‐income countries (LICs). Since it is easier for workers, especially women, to slip into the informal sector in LICs, regulations are likely to have stronger impacts on formal employment in these countries (but lower impacts on unemployment). We systematically reviewed available research from countries that are, or were until recently, LICs. Most studies document that more stringent labor regulations are associated with lower formal sector employment and higher informal sector employment. We also conducted a metaregression analysis of the impact of minimum wages on formal and informal employment. After controlling for publication bias, higher minimum wages are associated with lower formal employment and a higher share of informal workers.     

Patterns of employment relationships: the association between compensation policy and contractual arrangements

Firms respond differently to labour market regulations and develop an employment relationship accordingly. We use linked employer–employee data to examine the relationship between compensation policies and contractual arrangements in large-sized firms in Portugal. In this country, the wages are regulated through minimum wage and collective agreement, while employment is protected by stringent employment legislation. The empirical analysis starts with a fuzzy clustering to identify typical compensation policies. Three major segments emerge from this analysis: Competitive, Internal Labour Markets and Incentive. The first segment comprises low-wage firms, which are highly responsive to market conditions. The other two reveal properties of internal labour markets, although the incentive-based firms reinforce the use of discretionary power to differentiate the workforce. Subsequently, we estimate a regression model to examine how the compensation policy interacts with contractual arrangement. Empirical evidence confirms the segmentation predictions, i.e. low, flexible wages and flexible contracts prevail in the same firms. Furthermore, vulnerable categories like young workers and female workers are over-represented in Competitive firms, while high-wages are associated with incentive devices benefiting white-collar employees. Apparently, firms foster inequality among segments of workers and often penalise or favour the same category of workers.     

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.     

Wage determination in the union and nonunion sectors.

This study contains estimates of wage equations for white male union and nonunion employees. The authors find that nonunion wages are generally more responsive than union wages to individuals' education and experience and to regional price-level variation. Despite those differences, however, estimates of union-nonunion wage differentials based on these separate equations do not differ greatly from a differential obtained from a union dummy variable in an equation based on combined union and nonunion observations. Union-nonunion differentials vary widely across occupational groups and are generally larger in the lower skilled and more highly unionized occupations. The results for manufacturing, for which additional industry data are available, indicate a negative impact of high concentration ratios on the wages of all workers and a greater impact of establishment size on nonunion than on union wages. Data were drawn from the May 1973 Current Population Survey.     

How do very open economies adjust to large immigration flows? Evidence from Spanish regions

We study the labor market effects of the large immigration wave in Spain between 2001 and 2006. In this period the foreign-born share increased from 6% to 13%, with a total inflow exceeding three million immigrants. Our analysis exploits the large variation in the size of immigration flows across Spain's regions. To identify causal effects, we take advantage of the fact that immigrants' location choices were strongly driven by early migrant settlements that arrived during the 1980s. We find that the relatively unskilled migration inflows did not affect the wages or employment rates of unskilled workers in the receiving regions. The growth of the unskilled labor force was absorbed mostly through increases in total employment. This increase did not originate in changes in the composition of regional output, but was instead driven by changes in skill intensity at the industry level. Regions that received a large inflow of unskilled immigrants increased the intensity of use of the now more abundant (unskilled) labor, relative to other regions. The key industries responsible for this absorption were retail, construction, hotels and restaurants and domestic services. These results are inconsistent with standard open economy models but are in line with recent empirical studies for the United States and Germany.     

Wage‐setting Decisions on Newly Hired Employees: Survey Evidence from Colombian Firms

This paper uses a survey on wage formation applied to 1305 Colombian firms to study wage‐setting decisions of newly hired employees. The survey indicates that wages of the newly hired are based mainly on a predefined wage structure. This may help to explain, in part, the presence of downward nominal wage rigidities in the Colombian formal labour market, since firms are unwilling to differentiate the pay of new hires from the wages of existing workers. Using multinomial logit models, we find that firm size and the share of temporary workers increase the relative risk of using a predefined internal structure over bargaining between employee and employer when setting the wages of the newly hired employees. Copyright © 2013 John Wiley & Sons, Ltd.     

Ambiguous effects of tax progressivity — theory and Danish evidence

Recent tax reforms in the OECD area have aimed at reducing the progressivity of labour income taxation by reducing marginal taxes for given average taxes. Theory has shown that this reduces employment/production when workers and firms determine wages through bargaining. This paper shows that an opposite effect arises when both wages and working hours are subject to bargaining. This may reverse the traditional result and this is especially likely if the bargaining power of workers is low and if labour supply is relatively elastic. In conclusion, the overall effect of a reduction in progressivity is ambiguous. The empirical estimates for Denmark indicate that the overall effect is negative for blue-collar workers and neutral for white-collar workers.     

Do inter-city differences in intra-city wage differentials have any interesting implications?

Recent research has related characteristics of cities to differences in the distribution of wages across workers with different skill levels. We demonstrate that these differences in wage differentials arise naturally as a compensating variation in Rosen’s theoretical model of inter-city wages. For example, if the income elasticity of demand for housing services is less than unity, cities with higher house prices will have smaller money wage differentials between low and high skill workers. This result has no implications for differences in either absolute or relative real productivity or welfare of unskilled workers. Similarly, changes in the amenity of an urban area may result in changes in relative wages of skilled and unskilled workers with no implications for real productivity or welfare differentials.Empirical tests in which housing cost differentials are added as a determinant of inter-city differences in an intra-urban wage differential model provide empirical confirmation of the theoretical expectations. It appears that intra-urban money wage differentials, differences in the quality of life, and variation in the cost of living in each city are jointly determined variables just as Rosen’s model of inter-city wage differentials predicts.     

Do inter-city differences in intra-city wage differentials have any interesting implications?

Recent research has related characteristics of cities to differences in the distribution of wages across workers with different skill levels. We demonstrate that these differences in wage differentials arise naturally as a compensating variation in Rosen’s theoretical model of inter-city wages. For example, if the income elasticity of demand for housing services is less than unity, cities with higher house prices will have smaller money wage differentials between low and high skill workers. This result has no implications for differences in either absolute or relative real productivity or welfare of unskilled workers. Similarly, changes in the amenity of an urban area may result in changes in relative wages of skilled and unskilled workers with no implications for real productivity or welfare differentials.Empirical tests in which housing cost differentials are added as a determinant of inter-city differences in an intra-urban wage differential model provide empirical confirmation of the theoretical expectations. It appears that intra-urban money wage differentials, differences in the quality of life, and variation in the cost of living in each city are jointly determined variables just as Rosen’s model of inter-city wage differentials predicts.     

Better protected,better paid: Evidence on how employment protection affects wages

This paper empirically establishes the effect of the employer's term of notice on the wage level of employees. The term of notice is defined as the period an employer has to notify workers in advance of their upcoming dismissal. The wages paid during this period are an important element of firing costs and hence employment protection. To find a causal effect, I exploit the exogenous change in the term of notice that resulted from the introduction of a new Dutch law in 1999. Strong evidence is found that a longer ‘dormant’ term of notice leads to higher wages. In my sample, an additional month of notice increases wages by three percent, ceteris paribus.