Technology and labor regulations: theory and evidence

This paper shows that different labor market policies can lead to differences in technology across sectors in a model of labor saving technologies. Labor market regulations reduce the skill premium and as a result, if technologies are labor saving, countries with more stringent labor regulation, which bind more for low skilled workers, become less technologically advanced in their high skill sectors, but more technologically advanced in their low skill sectors. We then present data on capital-output ratios, on estimated productivity levels and on patent creation, which tend to support the predictions of our model.     

产业内贸易对中国技能 工资差距的影响

本文试图考察产业内贸易对技能工资差距的影响,理论分析表明：它随劳动力条件的变化而变化,在劳动力无限供给条件下它取决于技术劳动力的绝对需求,由于产业内贸易必能刺激技术劳动力的绝对需求,因此必然会扩大工资差距。但在劳动力条件转向有限供给后,它又取决于技术劳动力的相对需求,而产业内贸易未必使之扩大,特别是对两类劳动力替代弹性较大的部门来说,可能会使技术劳动力的相对需求下降,并使技能工资差距收缩。本文基于中国33个产业的5年面板数据验证了上述假说。     

A MATCHING MODEL WITH ENDOGENOUS SKILL REQUIREMENTS>*

We consider a labor market in which workers differ in their abilities and jobs differ in their skill requirements. The distribution of worker abilities is exogenous, but we model the choice of skill requirements by firms. High‐skill jobs produce more output than low‐skill jobs, but high‐skill jobs require high‐skill workers and thus are more difficult to fill. We use a matching model together with a Nash bargaining approach to wage setting to determine the equilibrium mix of job types, along with the equilibrium relationship between worker and job characteristics, wages, and unemployment.     

Capital–Skill Complementarity: Does Capital Composition Matter?

We estimate the effect of capital composition on the size of capital–skill complementarity and the skill wage premium. Disaggregating the capital stock into different types according to technological content, we find that: capital is more of a q‐complement to skilled labor than to unskilled labor; the higher the technological component of capital, the larger the size of the relative q‐complementarity between capital and skilled labor; and replacing non‐technological with technological capital might increase the skill wage premium by about 9 percent. Our results highlight that changes in capital composition matter for understanding changes in the skill wage premium.     

International Outsourcing and the Sector Bias: New Empirical Evidence

Considering labor market effects of international outsourcing on more disaggregated industry levels, a sector bias appears showing that low skilled labor receives a wage premium when international outsourcing takes place in low skill‐intensive industries. However, there is no empirical evidence supporting this pattern. Applying a panel data analysis for Germany, this paper provides new empirical evidence for the existence of the sector bias of international outsourcing: significant results confirm the decreasing wage gap if international outsourcing takes place in low skill‐intensive industries. If international outsourcing takes place in high skill‐intensive industries, the wage gap increases.     

Skills,Tasks and the Scarcity of Talent in a Global Economy

The scarcity of talent is a tremendous challenge for firms in the globalized world. This paper investigates the role of labor market imperfection in open economies for the usage of talent in the production process of firms. For this purpose, I set up a heterogeneous firms model, where production consists of a continuum of tasks that differ in complexity. Firms hire low‐skilled and high‐skilled workers to perform these tasks. How firms assign workers to tasks depends on factor prices for the two skill types and the productivity advantage of high‐skilled workers in the performance of complex tasks. I study the firms’ assignment problem under two labor market regimes, which capture the polar cases of fully flexible wages and a binding minimum wage for low‐skilled workers. Since the minimum wage lowers the skill premium, it increases the range of tasks performed by high‐skilled workers, which enhances the stock of knowledge within firms to solve complex tasks and reduces the mass of active firms. In a setting with fully flexible wages trade does not affect the firm‐internal assignment of workers to tasks. On the contrary, if low‐skilled wages are fixed by a minimum wage, trade renders high‐skilled workers a scarce resource and reduces the range of tasks performed by this skill type with negative consequences for the human capital stock within firms. In this case, trade leads to higher per‐capita income for both skill types and thus to higher welfare in the open than in the closed economy, whereas – somewhat counter‐intuitive – inequality between the two skill types decreases, as more low‐skilled workers find employment in the production process.     

Voting over selfishly optimal tax schedules: Can Pigouvian tax redistribute income?

This paper studies pairwise majority voting over selfishly optimal nonlinear income tax schedules proposed by a continuum of individuals who differ in privately observable skills and make consumption comparisons, which creates a negative positional externality. It shows that the tax schedule preferred by the median skill type will win the voting contest. Given a reference consumption defined as the average consumption in the population, all skills face the same Pigouvian tax rate in the utilitarian optimum, whereas in selfish optima high skills face a Pigouvian tax rate larger than that facing low skills, generating a novel income redistributive effect. Under a constant elasticity of labor supply, two more results are obtained. First, for Pareto, Champernowne, Weibull, and lognormal skill distributions, the selfishly optimal tax schedule facing high (low) skills tends to be more progressive when the bottom‐skill's (top‐skill's) status concern intensifies. Second, it identifies the conditions under which, in the voting equilibrium, high skills face higher marginal tax rates while low skills face lower ones than what they face in the utilitarian optimum.     

中国高技能-低技能劳动的技术进步偏向性及其估算

利用世界投入产出数据库(WIOD)中的中国分行业高、低技能劳动数据,推算了1995—2009年中国高、低技能劳动力的劳动投入和劳动报酬,并基于该数据测算了中国省域层面的高技能-低技能劳动技术进步偏向性。结果表明:中国所有省区的技术进步在大多数年份是偏向于高技能劳动的。     

Capital–Skill Complementarity and Inequality in Sweden

Income inequality increased in Sweden during the 1980s and 1990s, as did the returns to higher education. The main conclusion of this study is that increased income inequality between high‐ and low‐skilled workers is demand driven and is due to the presence of capital–skill complementarity in production. Increased investments in new, more efficient capital equipment, along with a slowdown in the growth rate of skilled labor, have raised the ratio of effective capital inputs per skilled worker, which, in turn, has increased the relative demand (and market return) for skilled labor through the capital–skill complementarity mechanism.     

FDI、劳动异质性与我国劳动收入份额

不同技能劳动的划分一直是劳动力市场的一个重要研究视角,也是难点之一。文章创新性地采用模糊聚类方法测算了我国第二产业中各行业的劳动高技能性,推算了高低劳动技能行业的工资比率,并进一步实证分析了高低劳动技能行业的工资比率、FDI等因素对我国劳动收入份额的影响。研究结果表明:(1)由于高技能劳动一般与资本结合得更为紧密,高低劳动技能行业工资比率的提高抑制了劳动收入份额的上升;(2)FDI引入对我国劳动收入份额也具有负向影响。     

Allocation of Labor in Urban West Africa: Insights from the Pattern of Labor Supply and Skill Premiums

Using comparable data from five West African capitals, we assess the rationale behind development policies targeting high rates of school enrollment through the prism of allocation of labor and earnings effects of skills across the formal and informal sectors, and not working. We find that people with high levels of education allocate to the small formal sector, while less educated workers allocate to the informal sector. While high levels of education are given more value in the relatively smaller sectors of salaried employment, observed skills like education appear to be fairly unprofitable in the larger self-employment sector. The fact that only the small formal sector in urban West Africa both seems to absorb highly educated workers and provide high skill premiums may be an important reason for the observed low demand for education and high dropout rates.     

人工智能对劳动收入水平和收入差距的影响——理论解读与实证检验

人工智能的发展对劳动市场产生了深远影响，但其对劳动收入水平和收入差距的效应仍处于探索阶段，且定量评估不足，缺少行业层面的经验证据。本文基于Acemoglu&Restrepo(2018)的人工智能技术模型，并引入行业人工智能发展的非对称性变动，从智能渗透和边界延展两方面分析人工智能对劳动收入水平与技能收入差距的影响及机理，并通过2003—2020年中国行业面板数据进行实证检验。结果发现：(1)人工智能对劳动收入水平和技能收入差距具有显著影响。从长期来看，人工智能的发展可以提高劳动收入水平，缩小技能收入差距。(2)人工智能对低技能劳动收入水平的冲击显著大于对高技能劳动收入水平的冲击。(3)人工智能通过提升高低技能劳动力就业水平增加劳动收入水平，缩小技能收入差距。     

Labor market integration policies and the convergence of regions: the role of skills and technology diffusion

We study the role of different labor market integration policies on economic performance and convergence of two distinct regions in an agent-based model. Production is characterized by a complementarity between the quality of the capital stock and the specific skills of workers using the capital stock. Hence, productivity changes in a region are influenced both by the investment of local firms in high quality capital goods and by the evolution of the specific skill distribution of workers employed in the region. We show that various labor market integration policies yield, via differing regional worker flows, to distinct regional distributions of specific skills. Through this mechanism, relative regional prices are affected, determining the shares that the regions can capture from overall consumption good demand. There occurs a trade-off between aggregate output and convergence of regions with closed labor markets resulting in relatively high convergence but low output, and more integrated labor markets yielding higher output but lower convergence. Furthermore, results differ substantially in several respects as distinct labor market opening policies are applied.     

Migration,Unemployment, and Skill Downgrading

In this paper, we analyze the labor market impacts of immigration under flexible and rigid labor market regimes. A general equilibrium framework is developed, accounting for skill heterogeneity and labor market frictions, where unemployed medium‐skilled manufacturing workers are downgraded into low‐skilled service jobs, while low‐skilled service workers might end up unemployed. The analytical analysis shows that medium‐skill immigration decreases low‐skilled unemployment under the flexible regime, indicating a complementarity effect, while the rigid regime induces a substitution effect, leading to low‐skilled unemployment. Moreover, it leads to wage polarization. In a numerical analysis, the economic effects of different migration scenarios are quantified.     

THE SKILL COMPOSITION OF U.S. CITIES*

This article explores why the fraction of highly educated workers varies across U.S. metropolitan areas. It documents a set of facts that pose challenges for a number of theories. Notably, (i) cities are characterized by industry neutral differences in skilled labor productivity and (ii) the size of the business services sector is strongly correlated with cities' skill compositions. Motivated by these observations, I propose an input sharing model, in which nontraded business services complement skilled labor. I show that the model accounts for all of the empirical regularities documented in the article.     

UNION WAGE COMPRESSION AND SKILL ACQUISITION

In this paper, I examine the relationship between unionisation and total output in an economy with a dual labour market, heterogeneous agents, and human capital investment. My primary focus is the skill acquisition channel, through which unionization affects total output. I theoretically demonstrate that the skill premium, and thus human capital investment, is determined by the prevalence of unions in high‐ or low‐skill‐intensive sectors. In particular, if a low (high)‐skill sector is unionised, then the skill premium is higher (lower), ensuring a larger (smaller) high‐skill sector, irrespective of the unions bargaining power. To test this hypothesis, I also empirically investigate the effects of unionisation on total productivity. The results indicate that through the reallocation of labour, unionisation induces an expansion of high‐skill‐intensive sectors, while low‐skill‐intensive sectors contract.     

City Size and Wage Disparity in Segmented Labour Market in China

The relation between city size and wage inequality is well established for Western countries. This paper finds that city size–wage premium exists across Chinese cities to a lower extent than the Western world. Further, using a simplified model on the Chinese Household Income Project survey data, we find that the city size–wage premium varies with difference in skills among urban citizens. The variation amounts to 50% more for the high‐skill workers compared with their low‐skill counterparts. Moreover, owing to the presence of segmented labour market, the patterns of city size–wage premium and city size–wage inequality premium are notably different for the migrants, who receive a much lesser wage than the citizens and do not experience wage variation owing to their skill heterogeneity.     

基于SPA的广东省区域经济脆弱性及障碍因素研究

运用集对分析法（SPA）从经济敏感性和应对性角度对广东省21个地级市经济脆弱性进行测度。研究表明：珠三角地区普遍具有较高应对性,但敏感性差别较大,其中深圳、中山、佛山因敏感性较低,经济表现出低脆弱性,而广州、东莞和珠海因敏感性较高,落入中等脆弱性区域。从广东欠发达地区看,东西两翼处于中等及较高脆弱性区域;山区普遍具有高敏感性和低应对性,其经济脆弱性最高。根据障碍因素分析,珠三角最主要障碍因素有R＆D经费/GDP、劳动生产率、消费率等,欠发达地区主要障碍因素是人均GDP、财政收入/GDP等。     

LOCAL LABOR MARKETS,JOB MATCHING,AND URBAN LOCATION*

We present a new way of modeling local labor markets by linking the space of workers' skills and the physical space of cities. The key lesson of our analysis is that firms exploit workers in these two spaces by setting wages that are below the competitive level. The degree of monopsony power depends on the elasticity of the firm's labor pool, which is inversely related to the costs workers incur in commuting and acquiring skills. Our analysis thus shows how socioeconomic ghettos emerge as workers with poor skill matches are also those who incur the highest commuting costs.     

Occupational Structure and Incidence of Poverty in Indian Towns of Different Sizes

This paper investigates the incidence of poverty in Indian towns and cities of various sizes of population. It also tests the hypothesis that larger towns and cities, because of their size, are capable of supporting more complex economic activities, improving labor productivity, and hence lowering the incidence of poverty. In particular, similar levels of education, ceteris paribus, have a larger impact in bigger conurbations.