劳动剩余条件下的供给不足与工资上涨——基于家庭分工的视角

基于贝克尔家庭经济学和时间配置理论可以证明,劳动剩余条件下的劳动供给并不是无限的。受制于家庭分工的约束,供给曲线呈特殊的阶梯形态：随劳动供给的增加,农业劳动力的保留工资不断提高,且幅度不断扩大。劳动供给对工资的反应是非连续的：只有当工资上升到新的保留工资水平时,劳动供给才会增加;否则,工资上涨并不能带来供给增长。与这种特殊的供给形态相对应,工资上涨的主要动力从农业收入转向工业劳动需求。内蒙、甘肃两省1,500个农户的调查数据证明了上述判断。当劳动需求扩张时,由于工资的微调不能带动供给的微调,劳动力市场将长期难以出清。这提醒我们,当前农民工工资上涨与用工短缺并存现象很可能源于劳动剩余条件下的供给不足,并不必然意味着剩余劳动力枯竭,不能作为刘易斯拐点到来的证据。     

Labor Market Outcomes for Legal Mexican Immigrants Under the New Regime of Immigration Enforcement

OBJECTIVES: This paper documents the effects of increasingly restrictive immigration and border policies on Mexican migrant workers in the United States. METHODS: Drawing on data from the Mexican Migration Project we create a data file that links age, education, English language ability, and cumulative U.S. experience in three legal categories (documented, undocumented, guest worker) to the occupational status and wage attained by migrant household heads on their most recent U.S. trip. RESULTS: We find that the wage and occupational returns to various forms of human capital generally declined after harsher policies were imposed and enforcement dramatically increased after 1996, especially for U.S. experience and English language ability. CONCLUSION: These results indicate that the labor market status of legal immigrants has deteriorated significantly in recent years as larger shares of the migrant workforce came to lack labor rights, either because they were undocumented or because they held temporary visas that did not allow mobility or bargaining over wages and working conditions.     

How did divorced women fare in the 1990s?: Analysis of work and hourly earnings

This paper presents evidence of changes in employment and real wages in the population of divorced single women during the 1990s. Using data from the U.S. Current Population Survey (CPS) for 1989 and 1999, the paper estimates multivariate models of labor force participation and hourly wages for each year. Differences between years in employment and wages are decomposed into portions attributable to changes in measured characteristics and changes in coefficients of the models. Estimates indicate that full time employment remained virtually unchanged during the decade, and real wages increased by less than 2%. Decomposition of the regression models shows that measured characteristics in this population changed in a direction that would have lead to higher wage growth, but those changes were offset by changes in the model’s coefficients. The result is that earnings experienced only modest growth. In the labor force participation model, changes in measured characteristics worked in the direction of a modest decrease in full time employment, but again coefficient changes provided an offsetting effect.     

Analysis of China＇s Unequal Income Distribution from the Perspective of Functional Income Distribution

中国收入分配的不平等在很大程度上表现为功能性收入分配的不平等，即随着经济的发展，工资性收入占国民收入的比例越来越小，而现阶段中国二元经济结构下的无限劳动力供给则是其主要原因。在一个具有凯恩斯主义特征的非均衡动态模型框架下，我们的分析表明，劳动力的无限供给，不仅使工资无法对劳动力市场的供求状况进行反应，而且使劳动生产率和物价变化对工资的影响也不敏感。这意味着，当存在着劳动生产率的提高或由经济增长所带动的物价上涨时，工资的提高不够显著，从而由经济增长或劳动生产率的提高所带来的利益大部分转化为利润而非工资。基于此，要彻底扭转中国收入分配恶化趋势，根本途径仍然是保持经济的高速增长，加快工业化和城市化进程，从而使农村剩余劳动力能够尽快被吸收。     

Gender differences in labor market wages: A comparison of industrial sector effects and a decomposition within four occupations

Women earn less than men. The reason may be due to either industrial segmentation or occupational segregation or both according to the current research. Researches focusing on one structure tend to neglect the other or to use an inadequate representation. This article examines the simultaneous impact of industrial sector and gender on imputed wages with labor force incumbents in four detailed occupations. These occupations are from a set identified as relatively internally homogeneous on measures of task performed from the Dictionary of Occupational Titles. Thus, within-occupational differences in work performed between males and females are minimized. The findings reinforce the importance of industrial sector for economic outcomes and demonstrate the value of an improved representation of occupation. The decomposition shows wage discrimination exists against females in each of these occupations, and in two sector-by-sector occupation comparisons, females should earn more than males.     

Differences in wage determination in the Eurozone: A challenge to the resilience of the common currency

Different developments in wages and unit labor costs across countries can reduce the synchronization of business cycles within a currency area and therefore be a potential source of asymmetric shocks and/or asymmetric response to a common shock. In this paper, we use novel econometric methods to identify differences and similarities in wage determination across Eurozone countries. Results show that wages have different determinants across euro area countries, among which two relatively distinct groups can be identified. In particular, wages in Germany, Austria, Belgium, Luxembourg, the Netherlands and Finland behave more similarly, are less sticky and respond more to macroeconomic conditions than those in the group composed of Italy, Spain, Portugal, France and Ireland. Moreover, the equilibrium wage has been affected by a structural change contemporaneous to the international financial crisis. Finally, structural reforms since the euro crisis have contributed to make labor market structures in Eurozone countries more similar, which contributed to improve the resilience of the Eurozone, but the job is not completed yet.     

Are there rewards for language skills? Evidence from the earnings of registered nurses

The existing empirical evidence on whether U.S. labor markets reward workers for second-language skills is meager and conflicting. Employing data from the National Sample Survey of Registered Nurses in 2000 and 2004, this study reexamines the positive bilingual–earnings relationship found in the most current research on this topic. We test the relationship using alternative models that explain the wages earned by nurses. The advantage of this approach is that it permits an assessment of how sensitive the results are to changes in the variables used in the model. We find the evidence of a positive bilingual effect on earnings to be mixed. The relationship is sufficiently frail that statistically significant results eventually dissolve as more precise occupational characteristics are included in the wage equation. Moreover, using more current data, we find no evidence of a wage premium paid to nurses for second-language skills. We offer possible explanations for this lack of evidence within this specific occupation.     

Economy-wide effects of cross-border labor mobility: The case of Palestinian employment in Israel

This paper investigates the economy-wide effects of cross-border movements of Palestinian labor for employment in Israel. The integration of Palestinian and Israeli labor markets is unique, as it differs from international labor migration and associated remittances described in the literature. Especially, it departs from the cultural and social dimensions associated with international migration because there is no shift in residence. We find based on an economy-wide model calibrated to a newly developed database of the West Bank economy that increasing Palestinian labor demand in Israel negatively affects the West Bank economy by bidding up domestic wages, reallocating labor away from tradable activities and reducing competitiveness of the Palestinian export sector. However, increasing labor income from Israel has positive welfare effects for Palestinian households. Considering these results, the paper identifies policy options for the Palestinian National Authority.     

Women's Wages: Cohort Differences in Returns to Education and Training Over Time*

Objective. This article examines the effects of education and work‐related training on wage‐growth trajectories for two cohorts of women as they aged from their early 20s and 30s into their early 30 s and 40 s. I test whether occupational training compensates for an earlier lack of education, thereby decreasing earnings inequality over time within cohorts. Because the broader economic context may influence the relationship between wages, education, and training, I test the assumption that the experiences of a given cohort may be generalized to others. Methods. Following NLS Young Women between 1977 and 1987 and NLSY79 Women between 1988 and 1998, growth‐curve analyses test whether returns to investments in human capital vary over time, across and within cohorts. Results. Women who did not update their skills over time experienced stagnation or declines in real wages, leading to growing wage inequality within education levels. However, women without a high school degree who engaged in on‐the‐job training experienced the greatest returns to training, thus reducing the initial education‐based wage gap. Conclusion. Education and training in adulthood can deflect the accumulation of disadvantage, but can also solidify an already uneven distribution of resources across social strata.     

农民工的就业与工资决定：教育与培训的重要性

在城市劳动力市场上,农村劳动力根据个人的人力资本积累状况和当地的劳动力市场条件,在成为自我经营者和工资收入者之间进行就业选择。简单的Mincer工资方程回归结果显示,工资收入者比自我经营者的教育回报率高出2个百分点左右。在矫正了样本选择偏差之后,拓展的Mincer工资方程对工资收入者的教育回报率估计结果在5.3%-6.8%之间。从培训角度看,简单培训、短期培训和正规培训对农民工再流动都有显著作用,但简单培训对农民工的工资收入作用不显著,而短期培训和正规培训则对其工资收入有着重要的决定作用。此外,工资拖欠等权益保护问题也对农村劳动力再流动有重要影响。在处理农民工的个人异质性和教育内生性问题时,本文还发现父母受教育年限不是一个理想工具变量。     

Unions,employment risks,and market provision of employment risk differentials

The role of unions in providing compensating differentials for wage and hours risk is analyzed. Unions are shown to increase wages for workers in more risky jobs. A negative compensating differential for nonunion workers is taken as evidence of worker-specific, or supply-side risk. This component of risk is removed by controlling for union status, based on the belief that unionized firms will be more likely to filter out high-risk unproductive workers. Hours risk is compensated for in the labor market, while wage risk is not.     

The decomposition of regional wage differentials in Korea

This research note explains the wage differentials between the capital region and the non-capital region in Korea. It analyzes what proportions of the wage differential are due to differences in productivity-related labor characteristics and due to differences in how markets value the endowments of their workers. In a decomposition analysis, we find that approximately 26.9% of the wage differential is due to differences in productivity-related labor characteristics in the capital region. With respect to the endowments of the wage-determining characteristics, a substantial portion of the overall wage advantage of workers in the capital region can be explained by the higher average level of education. It is also found that the more detailed the occupational breakdown, the more of the wage differential that can be explained. These results suggest that the use of more detailed occupation classifications alleviates aggregation bias that may be a significant factor in coarser classification schemes.     

SPECIAL ISSUE： MIGRANT WORKERS IN THE COURSE OF URBANIZATON Wages for migrant workers in the Pearl River Delta： determining factors

本文通过对珠江三角洲农民工问卷调查资料的回归分析,试图检验在市场转型下的企业制度和社会环境对农民工工资的影响。研究发现,人力资本中的教育年限、本企业工龄等变量对农民工工资有显著的正向影响,年龄和性别也有显著影响;企业制度中的工种对工资有显著影响,表现出明显的等级性。企业所属行业、规模和企业性质对工资没有显著影响,是否签订劳动合同和缺工情况同样如此。社会资本变量和社会环境变量对农民工工资水平没有显著影响。文章由此认为,农民工的工资是处于分割的二元劳动力市场一端,是高度市场化的,缺乏企业内部劳动力市场或晋升机制,也少受劳动力市场用工情况变化影响,没有地区性差异,是一个实实在在的、刚性的低工资。     

Analysis of China's Unequal Income Distribution from the Perspective of Functional Income Distribution

中国收入分配的不平等在很大程度上表现为功能性收入分配的不平等,即随着经 济的发展,工资性收入占国民收入的比例越来越小,而现阶段中国二元经济结构下的 无限劳动力供给则是其主要原因。在一个具有凯恩斯主义特征的非均衡动态模型框架 下,我们的分析表明,劳动力的无限供给,不仅使工资无法对劳动力市场的供求状况 进行反应,而且使劳动生产率和物价变化对工资的影响也不敏感。这意味着,当存在 着劳动生产率的提高或由经济增长所带动的物价上涨时,工资的提高不够显著,从而 由经济增长或劳动生产率的提高所带来的利益大部分转化为利润而非工资。基于此, 要彻底扭转中国收入分配恶化趋势,根本途径仍然是保持经济的高速增长,加快工业 化和城市化进程,从而使农村剩余劳动力能够尽快被吸收。

关键词: 功能性收入?二元经济?劳动力供给

China's unequal income distribution is to a large extent expressed in unequal functional income distribution, that is, as China's economy develops, the share of wage income in national income falls. The unlimited supply of labor under China's current dual economic structure is the major reason for this. In a disequilibrium dynamic model framework with Keynesian features, empirical analysis shows that the unlimited supply of labor not only prevents wages from responding to supply and demand situation in the labor market, but also makes them insensitive to labor productivity and price changes. This suggests that when there is a rise in labor productivity or prices following economic growth, the rise in wages may not be sufficiently marked. The benefits derived from economic growth or labor productivity increases have been, to a very large extent, converted into profits and not wages. Therefore, if we are to reverse China's worsening income distribution, our fundamental path should remain the maintenance of high‐speed growth and the acceleration of urbanization and industrialization so that surplus rural labor can be absorbed as soon as possible.     

The Obese Smoker's Wage Penalty*

Objective. Smoking and obesity are associated with significant wage penalties when considered separately. We assess the combined effects of those behaviors. Methods. We estimate the effects of smoking and obesity on wages using multivariate regression analysis with 1979 National Longitudinal Survey of Youth data. Results. The raw data indicate that obese smokers experience large earnings penalties. However, these penalties are not found to be interactive or directly causal for most of the demographic subgroups we examine. One exception is the wage penalty associated with obesity for females, which remains significant throughout the analysis. Conclusions. In the absence of a demonstrable direct causal effect of those behaviors on wages, associated individual‐specific socioeconomic factors appear to be the driving forces behind the obese smoker wage penalty. Not included, but potentially significant, are the effects of employer and customer discrimination against obese smokers and the possible labor policy implications of such discrimination.     

Latino Phenotypic Discrimination Revisited: The Impact of Skin Color on Occupational Status

Objective . We reexamine the issue of phenotypic discrimination against Mexicans in the U.S. labor market, originally studied by Telles and Murguia (1990) and later by Bohara and Davila (1992). We also seek to explain this topic with respect to the Puerto Rican and Cuban populations in the United States. Methods . Instead of using household income as a dependent variable, we use occupational ranking scores computed by Hauser and Warren (1996) in combination with data from the 1990 Latino National Political Survey (LNPS). The occupational rankings more accurately reflect the level of labor market discrimination faced by individuals. Furthermore, the use of the more recent LNPS allows us to update the work of previous scholars and extend the analysis to two previously unexamined Latino groups—Puerto Ricans and Cubans. Results . Our findings indicate that darker-skinned Mexicans and Cubans face significantly lower occupational prestige scores than their lighter-skinned counterparts even when controlling for factors that influence performance in the labor market. However, we find no conclusive evidence that skin-color differences impact occupational prestige scores for Puerto Ricans. Conclusions . Using earlier data, some scholars found evidence for difference in labor market performance among Mexican Americans as a function of phenotypic variations among Mexican Americans. Today, dark-skinned Mexican Americans and Cuban Americans continue to face higher levels of discrimination in the labor market, whereas dark-skinned Puerto Ricans do not, which may indicate regional differences across the three groups that need to be controlled for.     

Job Mobility and Early Career Wage Growth of White,African‐American,and Hispanic Women*

Objective. This article examines whether and how young women's job mobility influences racial and ethnic wage‐growth differentials during the first eight years after leaving school. Methods. We use the NLSY‐79 Work History File to simulate the influence of job mobility on the wages of skilled and unskilled workers. Results. African‐American and Hispanic women average less job mobility than white women, especially if they did not attend college. Unskilled women who experience frequent job changes during the first four postschool years reap positive wage returns, but turnover beyond the shopping period incurs wage penalties. Job mobility does not appear to boost wage growth for college‐educated women. Conclusions. Among unskilled women, race and ethnic wage disparities partly derive from group differences in the frequency of job changes, but unequal returns to job mobility drive the wage gaps for skilled women. We discuss several explanations for these disparities.     

The Long-Term Effects of Adolescent Childrearing

Data from the National Longitudinal Survey of Mature Women are used to explore the effect of adolescent childrearing on the hourly wages of women in the labor force. Women who were adolescent mothers earn less than other married or previously married women because of a persistent inability to achieve comparable educational levels. Adolescent mothers from more favorable socioeconomic backgrounds do better than other adolescent mothers in terms of education and income but, relative to women from the same background who postponed childrearing, their losses are substantial. Adolescent mothers are also more likely than other women to be or to have been single heads of households, with the economic disadvantages of that status. Public policy approaches to the prohlems of teenage parenthood must consider rhe provision of income resources and child care supports to enable young mothers to complete high school in order to further their chances for eventual self-support.     

The Differential Wage Impact of the Immigration Reform and Control Act on Latino Ethnic Subgroups*

Objective. This article tests whether employer sanctions for hiring undocumented workers, a provision of the 1986 Immigration Reform and Control Act (IRCA), adversely affected the hourly earnings of Latino workers. Methods. Using the Current Population Survey Outgoing Rotation Group Files from 1983–1990, a natural experiment framework is developed to assess the differential wage impact of employer sanctions on Latino ethnic subgroups. Results. Estimates of wage changes indicate that workers of Mexican descent saw a sizeable pre‐post IRCA decline in their hourly earnings relative to Cuban or Puerto Rican workers. Moreover, this change in wages is not observed among non‐Latino white workers. Controlling for the level of enforcement explains part of this decline immediately following the passage of IRCA, and enforcement efforts continue to be a significant factor several years later. Conclusions. The majority of evidence is consistent with the contention that employer sanctions adversely affected the earnings of Mexican workers.     

The Cost of Parenthood: Unraveling the Effects of Sexual Orientation and Gender on Income*

Objectives. Prior research has repeatedly shown that parenthood affects employment outcomes; mothers have, on average, lower wages and are less likely to be hired than childless women. Some research indicates that this effect of parenthood on employment outcomes is dependent on sexual orientation. In particular, lesbian mothers might be treated more like childless women by those making employment decisions. This article examines the degree to which the lesbian wage advantage can be explained by lesbians avoiding the motherhood wage penalty experienced by heterosexual women. Methods. Drawing on 2000 U.S. Census data, this issue is first explored via ordinary least squares regression equations that estimate the effect of having a child present in the household on income. The Blinder‐Oaxaca method is then employed to decompose the earnings differential between heterosexual and gay individuals. Results. Results indicate that lesbians appear to experience a motherhood advantage that increases their wages by approximately 20 percent. Further, results support the notion that lesbians receive different returns to the presence of children in the household than do heterosexual women. Approximately 35 percent of the wage differential between lesbians and heterosexual women is attributable to differences in returns to child rearing. Conclusion. These findings have relevance for state and federal anti‐discrimination laws and work/family policies, as they provide further insight into the role that gender, and gender‐based assumptions, play in determining employment outcomes.