Trade liberalization and the wage–skill premium: Evidence from Vietnamese manufacturing

This paper examines the wage–skill premium in Vietnamese manufacturing since the reform programme. The effects of tariff reductions on the wage–skill premium are analyzed in the presence of exporting opportunities, foreign investment, and research and development. The findings with firm‐level data reveal that a 10‐ percentage point fall in output tariffs is associated with a 4 percent increase in the wage–skill premium. The wage–skill premium in foreign‐invested enterprises is 40 percent higher than that of domestic enterprises. Trade liberalization influences the wage–skill premium in the presence of foreign ownership and R&D, while its impact on the skill premium only works through exporting.     

Money and rank in the labor market

We analyze the gains/losses in wage and in rank position for workers switching firm. Voluntary movers enjoy a wage premium relative to stayers, but that premium declines with rank inside the new firm, indicating that movers are trading-off money and rank.     

Changes in Occupational Tasks and Their Association with Individual Wages and Occupational Mobility

This study provides novel evidence on the relevance of task content changes between and within occupations to wage dynamics of occupational changers and stayers. I use individual‐level, cross‐sectional data featuring tasks performed on the job to compute a measure of proximity of job contents. Then, I merge this measure to a large‐scale panel survey to show that occupational changers experience a wage growth that is declining when the accompanying alterations in task contents are big. For occupational stayers, alterations in task contents generate a positive wage component, beyond tenure effect. However, the results are not robust with respect to the choice of proximity measure and over time.     

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.     

A MACROECONOMIC PERSPECTIVE ON SKILL SHORTAGES AND THE SKILL PREMIUM IN NEW ZEALAND*

Qualification and occupation‐based measures of skilled labour are constructed to explain the skill premium – the wage of skilled labour relative to unskilled labour in New Zealand. The data exhibit a more rapid growth in the supply of skilled labour than the skill premium, and a very large increase in the real minimum wage over the period from 1986 to 2005. We estimate the rate of increase in the relative demand for skills and the elasticity of substitution. The data are consistent with skill shortages and a skill‐bias technical change. We examine the effects of the minimum wage, capital complementarity, and the exchange rate on the skill premium. We also test whether the demand for skills and the elasticity of substitution varied across industries and over time.     

企业异质性、出口对工资溢价的影响——基于中国工业企业微观数据的经验证据

本文以企业异质性理论为基础，揭示了企业异质性、出口对工资溢价的影响机理。基于中国工业企业微观数据，对企业异质性、出口对工资溢价的影响进行了实证检验。研究结果表明：(1)企业异质性对工资溢价有显著的影响。其中企业创新能力、企业生产率、资本密集度与技术密集度、企业绩效对工资溢价有显著的正向影响，企业创新能力越强、生产率水平越高、绩效越好，其工资溢价越明显。(2)出口、出口补贴能够带来显著的工资溢价，工资溢价与出口密集度、出口补贴强度呈倒U型关系。(3)人力资本(员工受教育水平、职称、技能)对工资溢价有显著的正向影响。人力资本水平越高，其工资溢价越明显。此外，大型企业、中央直属企业、外资企业、沿海企业均存在明显的工资溢价。这一研究结果有着重要的政策启示。     

Intermediate good sourcing,wages and inequality: From theory to evidence

This paper examines the consequences of offshoring and outsourcing on domestic wages and wage inequality. I highlight the role of labor market frictions in impacting firms’ outsourcing and offshoring decisions; specifically, how differential costs of matching with workers affect the location of production (onshore or offshore) and how differential costs of assessing worker quality affect the ownership of intermediate production (intra‐firm or inter‐firm). I demonstrate how firm sourcing decisions can depend crucially on the industry skill intensity, which reflects the importance of worker–firm match quality, and as a result, the effect of offshoring on domestic labor depends on occupation and industry characteristics, as well as the ownership regime of trade. Bringing the theory to the data I rely on plausibly exogenous variation in the cost of inter‐ and intra‐firm offshoring to identify the effects of a change in each type of offshoring on domestic wages. I find strong evidence that the effect of offshoring on domestic wages—both on the average and on the wage distribution—is governed by the type of offshoring (inter‐ vs. intra‐firm), the skill intensity of the industry, and the offshorability of the occupation.     

International Trade and Collective Bargaining Outcomes: Evidence from German Employer–Employee Data

In theoretical trade models with variable mark‐ups and collective wage bargaining, exposure to international markets might reduce the exporter wage premium. We test this prediction using linked German employer–employee data covering the years 1996–2007. To separate the rent‐sharing mechanism from assortative matching, we exploit individual worker information to construct profitability measures that are free of skill composition. Our results show that rent‐sharing is less pronounced in more export‐intensive firms or in more open industries. The exporter wage premium is highest for low‐productivity firms. In line with theory, these findings are unique to the subsample of plants covered by collective bargaining.     

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.     

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.     

The selection of migrants and returnees in Romania

This paper uses census and survey data to identify the wage earning ability and the selection of recent Romanian migrants and returnees on observable characteristics. We construct measures of selection across skill groups and estimate the average and the skill‐specific premium for migration and return for three typical destinations of Romanian migrants after 1990. Once we account for migration costs, we find evidence that the selection and sorting of migrants are driven by different returns to skills in countries of destination. Our identification strategy for the effects of work experience abroad permits a cautious causal interpretation of the premium to return migration. This premium increases with migrants' skills and drives the positive selection of returnees relative to non‐migrants. Based on the compatibility of the results with rationality in the migration decisions, we simulate a rational‐agent model of education, migration and return. Our results suggest that for a source country like Romania relatively high rates of temporary migration might have positive long‐run effects on average skills and wages.     

WHY FOREIGN OWNERSHIP MAY BE GOOD FOR YOU*

We develop a two‐country model with heterogeneous producers and rent‐sharing at the firm level. We identify two sources of a multinational wage premium: A composition effect because multinational firms are more productive, make higher profits, and pay higher wages, and a firm‐level wage effect, because a firm makes higher global profits and thus pays higher wages in its home market when becoming multinational. With two identical countries, the wage premium is fully explained by firm characteristics. Allowing for technology differences between countries, a residual wage premium exists in the technologically backward country but not in the advanced country.     

Labour unions and multi‐product firms in closed and open economies

Abstract This paper sets up a general oligopolistic equilibrium model with multi‐product firms and union wage setting. In this model, we conduct two policy experiments. First, we show that deunionization induces a general decline in firm scale and scope, the respective reduction being more pronounced in non‐unionized industries. Second, we study the consequences of trade liberalization, and show that access to foreign markets lowers firm scope in all industries as well as the scope differential between unionized and non‐unionized firms. Adjustments in firm scale turn out to be less clear‐cut and, inter alia, depend on the degree of product differentiation.     

The responsiveness of industry wages to low‐frequency shocks in Canada

Abstract The first objective of this paper is to examine the empirical relationship between low‐frequency shocks to labour demand and average wages on an industrial basis using a Canadian longitudinal data set. We estimate a fixed‐effects model that controls for workers’ unobservable attributes. The second major objective is to extend the existing industry‐based literature by estimating a specification allowing for a comparison between the degree of wage responsiveness of within‐firm stayers and between‐firm movers. The findings indicate that average wages by industry tend to respond positively to low frequency changes in employment, and that there is some degree of wage flexibility within firm‐worker matches.     

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。     

Globalization and inter‐industry wage differentials in China

This paper explores the relationship between globalization and inter‐industry wage differentials in China by using a two‐stage estimation approach. Taking advantage of a rich household survey dataset, this paper estimates the wage premium for each industry in the first stage conditional on individual worker and firm characteristics. Alternative measures of globalization are considered in the second stage: trade openness and capital openness. A disaggregation of trade into trade in final and intermediate goods shows that increases in import (export) shares of final goods reduce (increase) the wage premia significantly, whereas imports or exports of intermediate goods do not explain differences in industry wage premia. This finding is supported by stronger effects for final goods trade in coastal than noncoastal regions. Our results also show a positive relationship between capital openness and industrial wage premia, though this finding is less robust when potential endogeneity issues are allowed for.     

Trade between symmetric countries,heterogeneous firms,and the skill premium

Abstract This paper examines the effects of trade liberalization between symmetric countries on the skill premium. I introduce skilled and unskilled labour in a model of trade with heterogeneous firms à la Melitz (2003) and assume a production technology such that more productive firms are more skill intensive. I show that the effects of trade liberalization on wage inequality crucially depend on the type of trade costs considered and on their initial size. While fixed costs of trade have a potentially non‐monotonic effect on the skill premium, a drop in variable trade costs unambiguously and substantially raises wage inequality.     

Manufacturing Skill‐biased Wage Inequality,Natural Resources and Institutions

We use an extensive dataset on occupational wages to measure the manufacturing skill premium and assess, for the first time, the influence of natural resources and institutional quality—in addition to traditional drivers—for advanced and less‐advanced countries and the full sample. The new findings, regarding 21 countries between 1988 and 2008 in the main panel estimations, suggest the premium of advanced countries rises with tertiary enrollment, net foreign direct investment (FDI) and institutional quality, and falls with centralized wage negotiations and geographically diffuse natural resource activities, mainly re‐exportation related. In less‐advanced countries, the premium rises with net FDI, scale effects, centralized wage negotiations and geographically concentrated natural resource activities (absorbing scarce skilled workers), and falls with trade, diffuse natural resource exploration (using mainly unskilled workers) and high‐technology exports, as emerging national low‐end technology industrial exporters may lower skill pay compared with foreign industrial exporters. In the full sample, the premium rises with scale effects, trade, institutional quality and concentrated natural resources, and falls with the relative skilled‐labor supply, centralized wage negotiations and diffuse natural resources. The results account for a wider diversity of situations compared with the previous studies.     

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.     

Investment abroad and labour adjustment at home: evidence from UK multinational firms

Abstract. This paper provides new evidence on the effects of overseas FDI on the skill‐mix of multinational firms’ home‐country operations. The analysis exploits China's WTO accession to identify the impact of outward investment into a low‐wage economy and uses plant‐level data to investigate changes in industrial structure within firms driven by plant closures. As predicted by models of vertical FDI, the paper demonstrates that overseas investment in low‐wage economies is associated with asymmetric effects on workers in low‐ and high‐skill industries in the home economy and, in particular, with firms closing down plants in low‐skill industries. JEL classification: F2