社会网络与民工工资：来自中国的证据

 本文基于来自中国22个省的农户调查数据研究了利用的不同社会网络对于不同的民工在城市劳动力市场上的工资水平的影响,结果发现：并不是利用所有的社会网络都能够提高所有民工的工资水平。首先,只有利用亲友关系找到的工作才能够得到更高的工资;其次,即使亲友关系也不能提高利用它找到工作的所有民工的工资水平,而只能显著提高女性和已婚民工的工资水平。所以,在研究中忽略社会网络和民工的差异性会导致错误的研究结论。本文有助于帮助理解中国的劳动力流动及社会网络在劳动力市场中的作用。     

Can older workers stay productive? The role of ICT skills and training

This paper quantitatively examines the effects of aging on labor productivity using individual worker data in Korea. We find that information and communications technology (ICT) skills and participation in job-related training can help older workers stay productive. The estimation results present that ICT skills, a measure incorporating an individual’s proficiency in ICT skills and their utilization in the workplace, has a positive effect on the wages of the older workers aged 50–64 with a high level of education or in a skill-intensive occupation. Job training also has a significant positive effect on the wages of older workers. These results imply that compared to younger workers, well-educated older workers can obtain greater productivity increase through ICT skill attainment and their adequate use, and job-training. The evidence suggests that a productivity decrease in line with the aging process can be mitigated by training aging workers to equip themselves with ICT skills.     

就业选择对区域间农民收入差异的影响：江苏的证据

江苏省农村居民家庭收入差距具有区域差异性、农业贡献递减性和工资性来源主导性等基本特征。就业选择对收入区域差异影响的分析表明,劳动力产业转移的收入效应单调递增,不同劳动力转移模式的收入效应各异,行业技术密集度的收入效应为正。缩小农村居民收入差距应发展县域经济,推动农村劳动力最大限度地向非农产业转移;细化劳动力市场,提高农村劳动力就业层次;拓展人力资本投资渠道,提升就业稳定性和收入水平:加大政府引导干预力度,完善农村劳动力就业的外部环境。     

换工作对收入水平和收入增长的影响

本文利用中国社会科学院2002年的CHIPS数据,分析了换工作对于劳动者收入水平和收入增长的影响。本文通过控制初始的收入水平来解决异质性的影响。结果表明,对于初始收入水平较低的样本,换工作对其收入有正的影响,而对于初始收入较高的样本,换工作则有负的影响。如果直接考察换工作对于收入增长的影响,给定初始收入和其他特征,换工作对于收入增长的平均影响是正的。不仅如此,换工作对于低收入者的收入增长有较大的正的影响。     

Legal Minimum Wages and Employment Duration

We estimate the effect of minimum wages on employment duration using event history data from the 1988-1994 rounds of the National Longitudinal Survey of Youth. Existing literature takes two alternative tracks: Some studies predict reduced turnover due to rents created by minimum wages, others focus on the expected increase in turnover due to reduced job amenities and imperfect information. We find that for men, the net effect of a minimum wage depends on its magnitude relative to the typical wage in the local labor market. We find some evidence that where the minimum wage is low, separation rates for men hired at the minimum wage are reduced. We also find that as the relative value of the minimum wage rises, separation hazards increase. We interpret these findings as evidence that rents may accrue to minimum wage workers, but that the job matching process is undermined when the minimum wage binds.     

城市人力资本如何影响工资水平?

文章基于CHIP2013微观数据,运用分层线性等模型考察了经济集聚情况下城市人力资本对工资影响的四种微观机制,结果发现：地区人力资本深度对个体工资有显著促进作用,信息技术服务业专业化也有一定正影响,产业多样化虽与工资存在负相关,但在控制内生性后影响不显著,就业密度则有微弱促进作用。异质性分析表明：人力资本深度对女性、受教育程度高者工资的边际效应更强,且对东部的作用远远超过对中西部地区的影响。同时其效果随着收入分位数的提高而递减,减少了不同群体的收入差距,但收入阶层间差异并不显著;信息技术专业化程度同样对于女性和受教育程度高者边际作用更强,且其对最高收入分位点人群的促进作用最大;多样化程度对工资的抑制作用不稳健,对东部人群的工资消极影响更加显著,对中下等收入及以上的群体工资抑制随收入层次上升而递减。     

Immigration and African American Wages and Employment: Critically Appraising the Empirical Evidence

This paper critically assesses the empirical evidence on the relationship between immigration and African American employment. Studies using various methodologies and data are reviewed: natural experiments, time series, and cross-sectional studies of local labor markets and intertemporal changes in the national labor market. We find that for African Americans as a whole, immigration may have little effect on mean wages and probability of employment. However, there is some evidence that immigration may have had an adverse impact on the labor market outcomes of African Americans belonging to low education-experience groups. However, even this modest conclusion must be qualified: the literature has many unresolved econometric issues that might easily undermine the received wisdom.     

Labor market concentration and heterogeneous effects on wages: Evidence from Japan

This study provides empirical evidence of the impact of labor market concentration on wages. We find that (1) wages are suppressed in more concentrated labor markets, (2) labor rigidity is associated with wage responsiveness to labor market concentration, (3) the impact of labor market concentration on wages is smaller for firms with more competitive downstream product markets, and (4) greater job opportunities outside the manufacturing sector weaken the relationship between concentration and wages. In sum, our findings indicate that labor rigidity and the degree of competition in downstream product markets, as well as outside options, affect the relationship between market concentration and wages.     

Females,the elderly,and also males: Demographic aging and macroeconomy in Japan

The speed and magnitude of ongoing demographic aging in Japan are unprecedented. A rapid decline in the labor force and a rising fiscal burden to finance social security expenditures could hamper growth over a prolonged period. We build a dynamic general equilibrium model populated by overlapping generations of males and females who differ in participation rate, employment type and labor productivity as well as life expectancy. We study how changes in the labor market over the coming decades will affect the transition path of the economy and fiscal situation of Japan. We find that a rise in the labor supply of females and the elderly of both genders in an extensive margin and in labor productivity can significantly mitigate effects of demographic aging on the macroeconomy and reduce fiscal pressures, despite their negative effects on equilibrium wages during the transition. The study suggests that a combination of policies that remove obstacles hindering labor supply and that enhance a more efficient allocation of male and female workers of all age groups will be critical to keeping government deficit under control and raising income across the nation.     

关于提高西部农民财产性收入的思考

西部农民身处落后的经济环境,财产性收入的来源既没有质量的保证、也缺乏数量的支持,因此,改善西部农民的财产性收入质量的前提是尽快提高其工资性收入和经营性收入;另外,财产性收入和工资性收入之间较强的相关性说明:"创造条件让更多群众拥有财产性收入"的一项有效策略就是提高西部农民的工资性收入。     

Wage increases, wage convergence, and the Lewis turning point in China

We examine the wage trends of ordinary workers and the wage convergence between unskilled and skilled workers in China. First, we find that wages in all non-agricultural sectors, wages of migrant workers, and wages of hired workers in the agricultural sector have increased dramatically since 2003. Second, through comparing wage differentials between migrant and urban resident workers and between heterogeneous education groups within migrant workers, and by investigating the changes in the contribution of the returns to education to wage differentials, we find that the wages of unskilled and skilled workers have converged. Both the increasing wage trends and wage convergence are interpreted as evidence supporting the hypothesis that China has passed what can be called the Lewis turning point in the industrial sector. We conclude that the sustainability of economic growth in China requires an upgrading of labor market institutions to accommodate the merging of the rural and urban labor forces.     

Local and Personal Networks in Employment and the Development of Labor Markets: Evidence from the Cut Flower Industry in Ethiopia

We examine the roles of local and personal networks in the employment process and the emergence and development of the labor market in Ethiopia’s growing cut flower industry. Using primary survey data of 320 workers randomly sampled from all 64 farms, we find that workers who were recruited informally using the social ties were paid less than the formally-recruited workers at hiring. However, these workers quickly increased their productivity, and the effect of social ties on wages disappeared over time. Further, we find that the development of labor market for this newly-emerged industry took place particularly within the industrial cluster.     

工资对个人劳动供给的非线性影响：部门市场化程度差异视角

从市场经济体制的建立到经济社会高质量发展，我国不同部门市场化程度有所差异，劳动供给的部门异质性随之体现。基于中国劳动力动态调查数据，结合汉森门槛回归模型和劳动供给模型，依托部门市场化程度的差异性，文章探讨了工资对劳动力个人供给的非线性影响及其部门异质性。主要得出以下研究结论：第一，我国市场部门与公共部门劳动力的个人劳动供给有所差异。第二，工资与个人劳动供给呈现非线性关系并且存在部门异质性。实证分析结果显示，工资对个人劳动供给的影响存在三个"突变点"，工资门槛均使得工资"激励效应"加强并呈现逐步增加的趋势。第三，劳动供给的工资门槛存在性别、城乡和行业异质性。第四，随着年龄增长、人力资本积累，个人劳动时间供给趋于降低，签署书面劳工合同使得市场部门劳动力工作时间显著增加，而政治面貌显著影响公共部门劳动供给。总体来看，无论是市场部门还是公共部门，我国劳动力个人供给曲线均未"向后弯曲"，国民经济高质量发展、改善收入分配格局、提升居民幸福感等议题需持续关注。     

人口老龄化对城乡收入不平等的影响效应研究——基于中国二元经济结构演变的视角

理论分析表明,二元经济结构下人口老龄化能够通过要素禀赋结构调整和社会福利改善对城乡居民收入产生不同的收入效应和替代效应,进而影响城乡收入不平等。利用中国2000-2014年省际面板数据进行实证检验发现：中国人口老龄化显著的扩大了城乡收入不平等,但要素禀赋结构和社会福利水平对老龄化条件下的城乡收入不平等影响效应不同;随着对老年人口供养负担的加重,社会福利支出对老龄化条件下的城乡收入不平等主要表现为替代效应,城市偏向的社会福利支出使得农村因照料老人引起的劳动力供给减少扩大了城乡收入不平等;而要素禀赋结构的转变则使得老龄化主要表现为收入效应,劳动力相对资本的稀缺性导致转移劳动力工资上涨,从而缩小了城乡收入不平等;随着老龄化深化,通过社会福利改善和要素禀赋结构调整能够有效抵消老龄化对城乡收入不平等的负面影响;研究也证实了二元经济结构的优化和农业规模化经营对城乡收入不平等的缩小作用,而失业率上升和城乡投资差距却会加剧城乡收入不平等。     

Evaluating public sector sponsored training in East Germany

Support of training has been a very important instrument ofactive labor market policy in East Germany. This paper attemptsan evaluation of the employment and wage effects of trainingsupported by public income maintenance outside of a firm. Afterdescribing the labor market developments in East Germany, weillustrate the evaluation problem. Then, we estimate a simultaneousmodel for participation in training, employment, and wages.Taking account of selection effects before participation, ourfindings mostly suggest positive though only partially significantlong-run effects of training on employment or wages.     

Trade liberalization and wage inequality: Evidence from Korea

This paper investigates the heterogeneous income distribution effects of trade liberalization using Korean survey data from years of 2000–2015. Following the Stolper-Samuelson theorem most of previous research studying the effects of trade liberalization on wage differences focus on workers’ characteristics (e.g., skilled or unskilled) while heterogeneity within the same worker group has not been yet substantially investigated. To fill this gap, this paper provides empirical evidence of wage inequality across firms within the same group of workers caused by trade liberalization, potentially implied in the new-new trade models with firm heterogeneity. Employing a difference-in-differences (DID) specification, we find that the wages of unskilled workers in Korea have increased since its FTAs with more advanced countries, such as members of EU and the US, came into effect, while the effects on the wages of skilled workers are negative but not statistically significant. We also show that wage effects are heterogeneous across firms within unskilled and skilled worker groups, while the positive effects are statistically significant and largest for unskilled workers in medium-large sized firms. These findings are in line with both traditional and new-new trade models.     

农户收入结构对农村贫困缓解的影响研究

采用2000～2005年全国26个省市区的面板数据,利用固定效应模型,分析了该时间段内我国农户家庭经营纯收入、工资性收入、财产性收入及转移性收入对农村贫困缓解的影响。同时,利用面板数据模型进一步分析了东、中、西部地区各种收入对本区域贫困缓解的影响。研究结论表明:家庭经营纯收入是我国农村贫困缓解的主要因素;与东、中部地区比较而言,西部地区贫困的缓解更加依赖于家庭经营纯收入,工资性收入对西部地区贫困缓解的效应强于中部地区。     

Effects of school closure on household labor supply: Evidence from rural China

This paper studies the effects of school closure on household labor supply exploiting China's large-scale rural primary school closing during the early 2000s. Using CHNS 1991–2011 and CHIP 2007–2008 datasets and a difference-in-differences approach, we find that school closure significantly increases the total annual income of mothers of primary school-aged children, which comes virtually entirely from increases in wage income, due to more participation, more working hours, and higher wage rates. This significant positive effect can plausibly be attributed to their migration responses: mothers engage in temporary rural-urban migration to care for children following school closure. We find no effects on fathers' income and migration behavior. Our study provides the first causal estimation of the impacts of school closure on household labor supply and sheds light on the migration decision-making of rural females.     

Labor Market Reform, Income Inequality and Economic Growth in China

The year 1996 was a turning point both in terms of Chinese labor market reform aria m China＇s economic growth pattern. Before 1996, labor market reform was mainly implemented through adjustment of people＇s occupation and income structure. Since 1996, employment restructuring has led to differentiation in terms of employment status. Labor market reform in the former stage resulted in slow growth in wages, whereas reform in the latter stage enhanced economic efficiency. Both stages have enabled the Chinese economy to apply its comparative advantage of low labor cost. Labor market reform has also increased income disparity and, therefore, new challenges are posed in sustaining economic growth. China needs to adjust its development strategies and introduce labor market reform that can improve income equality, so as to achieve sustainable economic development.     

Innovation strategies and productivity growth in developing countries: Firm-level evidence from Pakistani manufacturers

We examine the determinants of product, process, and organizational innovations, and their impact on firm labor productivity using data from a unique innovation survey of firms in Pakistan. We find significant heterogeneity in the impact of different innovations on labor productivity: Organizational innovation has the largest effect followed by process innovation. But unlike much of the literature, we found a negative impact of product innovation suggesting a disruption effect of new products. We find a strong impact of engaging in knowledge creation on product and process innovation. We also find that external knowledge networks and innovation cooperation play no significant role in firms’ decision to engage in innovation and its intensity, however, vertical linkages with suppliers (clients) promote product (process) innovations. Foreign competition has a negative effect on product innovation and a positive effect on organizational innovation. Exposure to foreign markets both in term of exporting and quality standard certification leads to better innovation performance.