A new class of production functions and an argument against purely labor‐augmenting technical change

This paper derives the macro‐level production function from idea‐based microfoundations. Labor‐augmenting and capital‐augmenting developments are assumed to be Pareto‐distributed and mutually dependent. Using the Clayton copula family to capture this dependence, a new “Clayton–Pareto” class of production functions is derived that nests both the Cobb–Douglas and the constant elasticity of substitution. In the most general case, technical change is not purely labor‐augmenting over the long run, but it augments both capital and labor. Under certain parametrizations, the derived elasticity of substitution between capital and labor exceeds unity and, therefore, gives rise to long‐run endogenous growth.     

Golden Rules of Wages

We consider a neoclassical growth model where labor collectively chooses labor share to maximize its steady‐state wage rate. In the basic two‐factor model, labor maximizes the steady‐state wage rate by setting labor share equal to the elasticity of output with respect to labor. This is precisely the competitive outcome. Only when we consider the model with organized and unorganized labor types can organized labor raise its steady‐state wage by choosing a higher than competitive labor share. Organized labor can benefit by choosing a higher labor share only at the expense of unorganized workers; not capital. We also analyze a version of the model that incorporates a tradeoff between collective bargaining opportunities and skill acquisition. All else equal, a higher skill premium leads organized labor to choose a higher labor share. Organized labor benefits again at the expense of skilled workers; not capital.     

Changing Elasticities of Labor Demand in U.S. Manufacturing

This paper provides a link between long-standing labor demand elasticity estimates in U.S. manufacturing and recent studies of wage patterns and labor demand shifts in response to technical change and international trade. We document asymmetric changes in labor demand elasticities including an absolute and relative increase in own-wage elasticity of demand for production workers. Separate estimates of substitution and scale responses imply that skill-biased technical change dominates increased product market competition as a source of the observed changes in labor demand elasticity.     

Taxation and the redistribution of income

Conclusion This paper has offered no empirical evidence, and is not trying to argue that after-tax relative wage rates will not change at all in response to a change in the progressivity of the tax structure.⁸ Rather, the point is that there is a market mechanism that causes changes in progressivity to be at least partially offset by changes in the pretax wage structure. This mechanism is not taken into account by any model of redistribution through taxation that treats labor output as a homogeneous factor of production. Treating labor output as homogeneous eliminates adjustments to relative wages that are certain to occur in response to a change in the progressivity of the tax structure. Thus, progressive taxation has less ability to redistribute income than is commonly realized. Any shortcomings in the paper remain the responsibility of the authors.     

Labor Market Distortions in Côte d'Ivoire: Analyses of Employer‐Employee Data from the Manufacturing Sector*

Abstract: This paper investigates the extent and nature of distortions in the labor market in the Republic of Côte d'Ivoire by using quantile regression analysis on employer‐employee data from the manufacturing sector. We found that the labor markets in Côte d'Ivoire do not seem to be much distorted. Unions may influence employment through tenure but do not seem to influence wages directly except for vulnerable minorities that seem protected by unions. Establishment‐size wage effects are pronounced and highest for white‐collar workers. This may be explained by the efficiency wage theory, so that, even in the absence of unions, segmentation and inefficiencies will still be present as long as firms seek to retain their employees by paying wages above the market clearing level. The inefficiency arising from establishment‐size wage effects can be mitigated by education. Furthermore, the premium to education is found highly significantly positive only for higher education, and not for basic education, indicating that educational policies should also focus on higher education.     

Inter-industry labor reallocation and task distance

This paper investigates factors preventing inter-industry labor reallocation by estimating the determinants of inter-industry worker flow and earnings change after a job change. We find that the difference in required tasks is an important reason for earnings reduction after an inter-industry job change, and thus, workers may hesitate to move to industries requiring a different set of tasks for fear of losing the wage premium acquired by task-specific human capital. In addition, more workers switch to industries with which their previous industry had larger transactions, although it affects earnings changes only marginally. On the other hand, industry performance does not affect labor inflow or wage changes significantly for inter-industry job changes. Young men, less educated women, and those quitting previous jobs for family or health reasons are more likely to move to industries requiring a different set of tasks, and young individuals who lost their jobs involuntarily are less likely to do so. Individuals more likely to move are not necessarily those whose earnings loss associated with the move is small: earning losses associated with task distance are relatively small among younger and less educated workers and are uncorrelated with the reasons for quitting the previous job.     

Top wage incomes in Japan, 1951–2005

Using wage income tax statistics, we construct continuous series of upper wage income shares in Japan from 1951 to 2005 to document the evolution of top wage incomes and investigate their long-run determinants. We find that, while the middle wage income class gained enormously both in absolute and relative terms during the period of high economic growth, the upper wage income class faired comparatively better after 1975. In particular, the shares of total wage accruing to the top 1% wage earners and above have risen steadily since the late 1990s. A simple time-series regression analysis indicates that marginal income tax rates, corporate performance, female labor force participation, and labor disputes are important determinants of top wage income shares in post-WWII Japan. Although not conclusive, our results suggest that much of the recent gains in wage income shares at the top can be explained by the changes in these four factors, placing a less emphasis on a story of structural change.     

我国农业机械化演进轨迹与或然走向

基于诱致性技术变迁的视角,运用1990～2009年时间序列数据分析农村居民的工资性收入对农户采用农业机械决策的影响。结果表明,工资性收入对农户采用农业机械的决策具有显著效应,工资性收入增加,农业机械采用水平也会增加。20世纪90年代以来我国农业机械使用水平的大幅上升主要是因为农业劳动力相对稀缺导致的,因此要改变优先发展农业生物化学技术的观点,而应注重农业机械技术与生物化学技术并重发展。     

Why married women's labor supply in the Netherlands has increased

Summary On the basis of cross-section data sets for 1979 and 1987 we determine: 1) the relative contribution of changes in participation and in hours of work to the increase in married women's labor supply; 2) how much of the change in participation and hours of work is determined by changes in preferences and in budget constraints; and 3) the causes of changes in market wages and reservation wages. The increase in the average unconditional hours of work is much more due to the rise in the participation rate than to the increase in conditional hours of work. Preference changes have contributed positively to the increase in married women's labor force participation over the period 1979–1987, whereas changes in market opportunities have contributed negatively. The change in the market wage and the reservation wage can be attributed mainly to changes in the population structure of married women. Changes in the model structure contributed negatively to the change in the real market and the reservation wage. The positive effect of the change in the population structure dominates the negative effect of the model structure. Finally, participants in the labor market have a comparative wage advantage over non-participants. Non-participants are a self-selecting group with a relatively high reservation wage.We like to thank Joop Hartog, Jules Theeuwes, Isolde Woittiez and two anonymous referees for their comments on a previous draft of this paper.     

On the heterogeneous short‐term effects of minimum wages on labor demand

A strand of the literature documents no effects or even positive effects of a higher minimum wage on employment. This evidence is frequently linked to the existence of monopsonistic labor markets or search frictions. However, empirical studies show that these findings could be related to a low short‐term minimum wage–employment elasticity in a competitive labor market. We show that mixed theoretical employment effects of a minimum wage policy can be predicted in the short term in assignment economies with price‐taker agents and no search frictions.     

Export Activity,Firm Size and Wage Structure: Evidence from Taiwanese Manufacturing Firms*

This study adopts a semiparametric smooth coefficient model to evaluate the export–wage premiums, firm size–wage premiums, and the wage gap between skilled and unskilled labor. Particular focus is placed upon widespread evidence indicating that pay levels in ‘large’ and ‘export‐oriented’ firms are higher than in their ‘small’ and ‘domestic‐oriented’ counterparts. Applying the firm‐level data for Taiwanese manufacturing firms, we find a positive export–wage premium for skilled workers and a negative export–wage premium for unskilled workers. The hypothesis of a constant export premium across firm size is rejected. While most of the export–wage premiums for skilled labor can be attributed to the small and medium firms, the large exporting firms have a significant adverse effect on wages for unskilled labor. Moreover, our results suggest that the firm size–wage premiums for skilled workers are larger than those for unskilled workers. The wage gap between the two skill groups is also sensitive to size categories.     

IMPACTS OF TRADE LIBERALIZATION ON EMPLOYMENT IN VIETNAM: A SYSTEM GENERALIZED METHOD OF MOMENTS ESTIMATION

Using a system generalized method of moments model, the present paper investigates the impacts of trade liberalization on employment in Vietnam from 1999 to 2004. The results show that the increase in industrial output increased labor demand, whereas the increasing wage rate led to a decline in the employment level. The impact of export expansion on derived labor demand was positive and statistically significant, indicating that the higher level of exports than previously presented employment opportunities for the country's large labor surplus. As far as imports are concerned, empirical observations indicate that imports did not necessarily negatively impact Vietnam's employment level.     

Do Exporting Firms Pay Higher Wages? Evidence from Kenya's Manufacturing Sector

Abstract: When trade liberalization was first embarked on in Kenya some 20 years ago, a key argument against it was that it would reduce domestic wages, as exporting firms sought to remain competitive versus, for example, the low‐cost Asian countries. A counter argument was that manufactured exports require more elaborate design, supervision, packaging and handling, and thus a more educated labor force than production for the domestic market. To attract such skills, exporting firms would need to pay higher wages than non‐exporting ones. This paper uses data from Kenyan manufacturing to study the impact of trade liberalization on earnings, distinguishing between exporting and non‐exporting firms. In particular, it investigates whether exporting firms paid a wage‐premium to their employees. The study uses manufacturing firm survey data from a World Bank regional project. The study has three important findings: (1) There was a large and significant effect of exporting on wages in the first decade of trade liberalization. During the first half of the 1990s, workers in exporting firms earned up to 30 percent more than those engaged in non‐exporting firms. The results are robust even after controlling for individual and firm‐level characteristics such as employee demographics, productivity, firm location and occupation. (2) After a decade of trade liberalization, exporting ceased to be a significant determinant of wages in Kenyan manufacturing, after controlling for productivity and firm location. (3) During the 2000s, casual or irregular employment became a more common feature of exporting firms. The results suggest that while higher wages were important in attracting skilled labor to exporting firms at the beginning of trade liberalization in the 1990s, domestic competition has since reduced the wage premium. Cost cutting pressures are instead reflected in the substitution of casual and low wage labor for permanent and better educated labor and in increased automation.     

劳动力成本上升对中国国际竞争比较优势的影响

"民工荒"使得关于我国劳动力成本是否上升,以及其上升是否降低了我国参与国际分工的比较优势这一命题的讨论日益增多。本文提出观点:近年来我国劳动力成本上升显著,但我国国际竞争的比较优势却并不因此下降,原因有如下两点:一是最集中体现我国国际竞争比较优势的行业——制造业工资水平的上升幅度远远小于整体工资水平的上升幅度;二是劳动力工资水平的上升可部分归因于劳动生产率的提高,而这并不会使我国丧失国际竞争的比较优势。本文的实证分析通过梳理劳动力工资水平的变化及其与FD I流入量和出口量变化的关系,印证上述观点。这说明我国国际竞争的比较优势仍然存在,加之我国依然存在大量的农村剩余劳动力,因而不能全盘否定廉价劳动力这一比较优势,技术创新与结构升级的政策不能一刀切,应在充分利用廉价劳动力优势的基础上,使生产率提高的源泉逐步替代人口红利源泉。     

Job tasks and wages in the Japanese labor market: Evidence from wage functions

Based on the microdata from the Basic Survey on Wage Structure and the original survey, we estimate the Mincerian wage function, incorporating job tasks, to examine the importance of job task wage premiums as well as long-term changes in the Japanese labor market. In the estimation, we found that the association between abstract tasks and wages is positive and that a one standard deviation increase in the abstract task scores was associated with a 21.2% wage premium, while that of routine and manual task wage premiums are negative. We also found that the total explanatory power of three task scores (routine, abstract, and manual tasks) is higher than that of the education dummies or the major occupation group dummies. We also confirmed two testable implications from the Roy model regarding the workers’ self-selection into occupations in the Japanese labor market. These findings are similar to those obtained by Autor and Handel (2013). On the other hand, we found no major changes between 2005 and 2016 in the coefficients of routine, abstract, or manual task scores as well as their explanatory powers in the wage function. We then observed that demand for labor increased in many occupations involving many non-routine or manual tasks, but at the same time, the supply of labor to those occupations also increased. Therefore, we discussed that the change in labor demand and supply may be one of the reasons for the stable relationship between job tasks and wages.     

市场化改革中的大学毕业生性别工资差异及歧视

以往文献认为,市场机制的不断完善会逐渐消除劳动力市场性别歧视,然而本文发现这一结论并不适用于目前大学毕业生劳动力市场。通过对不同市场化程度企业工作的河北省2007届大学毕业生抽样数据的实证分析发现,随着我国市场化进程的深入,不但大学毕业生性别工资差异明显扩大,而且歧视尤其是反向歧视所占比重也在加剧。本文认为,大学毕业生劳动力市场受传统文化影响程度还远远大于市场竞争作用的发挥。故只有进一步加大市场竞争,才能逐步消除劳动力市场的性别歧视因素。     

Jobs with different wage determination mechanisms, social efficiency and unemployment

The purpose of this paper is to construct a theoretical framework for the labor market, which is composed of a variety of jobs with different wage determination mechanisms. We identify an equilibrium in which some firms post a wage and others bargain with workers. This paper shows that the proportion of firms adopting wage bargaining in a decentralized equilibrium is below the socially optimal level. We identify policies to increase this proportion and to improve social efficiency. Furthermore, we examine the impact of those policies on unemployment. The results of this study will determine the direction of employment policy on the labor market with various employment styles.     

EMPLOYMENT,CAPITAL, AND PRODUCTIVITY DYNAMICS: EVIDENCE FROM THE MANUFACTURING SECTOR IN URUGUAY

Using a sample of Uruguayan manufacturing establishments we analyze employment, capital, and productivity dynamics over a period of currency appreciation; changes in trade policy; and changes in the institutional setting of wage negotiations. As the relative capital–labor price ratio fell, capital intensity increased. At the same time, there was an increase in labor and total factor productivity. Creation and destruction rates were relatively high and pervasive over time, sectors, establishment size, and establishment age, with exits explaining a sizeable part of destruction rates. Most of the excess reallocation was due to movements “within” rather than “between” sectors. Thus, high reallocation rates were linked to establishment‐level heterogeneity rather than aggregate shocks.     

Imperfect competition,technical progress and capital accumulation

This paper constructs a dynamic equilibrium growth model, in which some firms act as monopsonies on the labor market. The framework is an overlapping generations growth model with altruistic agents. Two types of firms exist, competitive and non‐competitive, the latter being endowed with a more productive technology. They behave strategically on the labor market, in taking into account the impact of their demand for labor on the equilibrium wage and on their profit. In this framework, the impact of technical progress on capital accumulation can be positive or negative, depending on its effect on monopsony power.     

贸易开放与工资差距——基于中国制造业行业面板数据的实证研究

本文在中国贸易非均衡发展现状基础上,构建计量模型,从商品价格机制、技术进步机制和生产率进步机制角度探讨中国贸易开放影响中国制造业行业间工资差距的具体传导机制。研究发现:(1)就制造业总体而言,贸易主要通过技术进步机制和劳动生产率机制来影响行业工资,造成行业间工资差距的扩大。(2)具体而言,劳动力密集型行业中,进出口贸易、资本密集度和劳动生产率共同作用于行业工资差距;在资本密集型行业中,进口贸易、资本密集度和劳动生产率是扩大工资差距的动因;在技术密集型行业中,出口贸易是工资差距扩大的主导因素。