Trade liberalization and the wage gap: the role of vertical linkages and fixed costs

This paper studies the labor market impacts of trade liberalization, and specifically tariff reductions, with a focus on the wage gap between skilled and unskilled workers in presence of vertical linkages in the fixed costs of production. To that purpose, we develop and empirically test a monopolistic competition model with variable elasticity of substitution and labor differentiated by skill level, where skilled workers are the residual claimants of savings on imported inputs. Consistently with the model predictions, we find that a 10% reduction in tariffs implies on average a 3.8% increase in the wage gap. In addition, the same level of tariff reduction is expected to lower unskilled employment in domestic production by 3.3%, which is partially offset by an expansion of unskilled employment in the export segment of production. These results are obtained matching detailed international trade data with World Input–Output Tables and EU KLEMS data on country-sector wage by skill level on 17 OECD countries from 1996 to 2005.     

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.     

Global value chains,firms, and wage inequality: Evidence from China

How does participating or moving to more upstream in the global value chains (GVCs) affect the premium paid to skilled compared to unskilled labor within firms? In this paper, we develop a model of heterogeneous firms with intermediate trade and two skill inputs, in which we apply the fair wage hypothesis to predict the wage premium changes according to firms' GVCs activities. The model predicts that firms' backward GVC participation, as measured by the share of foreign value-added content in exports (FVAR), has an ambiguous impact on wage inequality of skills, which depends on the relative importance of “FVAR-labor substitution effect” and “FVAR-profit effect.” However, moving to upstream sectors in GVCs, as measured by the export varieties' upstreamness (or average distance from final use), raises a firm's wage premium. Using detailed Chinese firm-level data from 2000 to 2006, we develop a Mincer-type empirical model to study the wage premium changes associated with FVAR and upstreamness. We find robust empirical evidence that the rise of wage inequality in China mainly arises from moving to more upstream sectors rather than changing GVC participation.     

Accounting for Skill Premium Patterns: Evidence from the EU Accession

In this article, we decompose the joint and individual contributions of tariff reductions, productivity changes and capital deepening to account for the skill premium patterns of the transition economies that joined the European Union (EU) in 2004. To conduct our accounting analysis, we construct an applied general equilibrium model with skilled and unskilled labor, and combining Social Accounting Matrices, Household Budget Surveys and the EU KLEMS Growth and Productivity Accounts database, we calibrate it to match Hungarian data, a transition economy where the skill premium consistently increased between 1995 and 2005. We find that capital deepening coupled with capital‐skill complementarity is the main force behind the rise in the skill premium.     

Skilled-Labor Intensity Differences Across Firms,Endogenous Product Quality,and Wage Inequality

This paper proposes a theory to explain the relative wage-rate increase for skilled labor that results from trade liberalization that relies on within-sector reallocations of production resources (skilled and unskilled labor) across firms. Motivated by some stylized facts, in a model with firm heterogeneity, including firms that differ in their skill intensity even within a narrowly defined industry, firms with relatively high skill intensity that are more likely to be exporters, and a positive association between a firm’s skill intensity and its product quality, I develop a general equilibrium model where firms with a higher skill intensity endogenously choose a higher-quality product, and tend to be more profitable. In this framework, a reduction in trade costs allows members of the workforce to reallocate to more efficient firms that produce higher-quality products, using their skilled labor more intensively, resulting in a rising skill premium. The main sources of the increasing wage inequality that followed trade openness are a positive link between a firm’s skill intensity, its product quality, and quality competition.     

Education,globalization and catch-up: Scandinavia in the Swedish mirror

This paper estimates and analyses wage inequality trends in Portugal, from 1944 to 1984, a period that comprises the Estado Novo dictatorship and the first decade after the transition to democracy. Wage inequality is measured by the gap between skilled and unskilled labour, and reveals a downward trend in most of the period in analysis. We provide an explanation for the observed trends by looking at the influence of domestic and international forces on changes in the relative supply and demand of skilled labour. According to our findings, the skill premium declined due to the combined influence of two major forces: an increase in the relative supply of skilled labour due to the mass emigration of unskilled labour, and the decrease in the relative demand for skills, related to trade-induced changes stemming from the country's increasing openness, which followed the country's unskilled labour comparative advantages. Our findings point to the conclusion that the impact of openness on wage inequality is related to the country's relative level of development among its major trading partners.     

TRADE LIBERALIZATION AND WAGE PREMIUM IN ARGENTINA: THE ROLE OF TRADE FACTOR INTENSITY

During the 1990s, several Latin American countries implemented policies directed to the removal of barriers on international trade. However, there is a perception that reforms, especially trade liberalization, failed to deliver on their promises, easing the way for policies aimed at reversing some of them. Following Wood's hypothesis, we allow for the effects of liberalization to vary, depending on the skill intensity of production. The evidence confirms that the role of trade liberalization has been relatively small, but controlling for the presence of endogeneity gives larger estimates. Contrary to previous evidence, the wage premium of skilled workers was more sensitive to the increase of skill‐intensive exports than to that of unskilled‐intensive imports.     

Did International Outsourcing Cause the Increase in China's Skill Premium?

This study analyzes the transmission mechanism for the increase in the skill premium caused by international outsourcing through skill‐biased technological change (SBTC). Using 2000–2013 panel data from 27 manufacturing industries in China, this study conducts both probit and Tobit tests and shows that international outsourcing led to SBTC in China's manufacturing industries. A positive correlation is found between international outsourcing and the increase in the skill premium in both static and dynamic models. For each 1‐percent increase in the international outsourcing index, the skill premium will rise approximately 10 percent. This finding indicates the existence of a mechanism through which the effect of international outsourcing on the skill premium is reinforced where SBTC is occurring. However, this may enlarge wage gaps within the same industry. Therefore, China should not only use the skill premium to promote the transformation and upgrading of industries benefiting from outsourcing and optimize the structure of employment but also prevent the negative effects of an increased skill premium.     

Does Trade,Technology, or Education Expel Traditional Sectors? Some Evidence from the Collapse of the Silk Sector in South Korea*

Rapid economic growth and development often drives out traditional activities. We determine how increased trade, technology, and access to education in South Korea led to the collapse of its silk sector. Results show that although the imports of silk yarn and fabric reduced domestic silk output and prices, trade liberalization was not the sole contributor to the collapse. Inelastic labor demand for unskilled workers, skill‐biased technology, and especially increased access to education all led to a sharp rise in the relative wage of unskilled workers, and the ensuing rise in production costs contributed to the silk sector's collapse.     

外包与工资差距——基于工业行业数据的经验研究

本文首先检验了国际外包对我国熟练劳动力与非熟练劳动力工资差距的影响.计量结果表明,与斯托尔帕-萨缪尔逊定理所揭示的相反,外包贸易降低了我国相对丰裕的非熟练劳动力的相对工资.微电子设备的使用也加大了对熟练劳动力的需求,进一步加大熟练劳动力与非熟练劳动力的工资差距.为了检查是否是因为贸易形态的变化所导致的结果,我们进一步检...     

女性家庭地位上升、生育率差异与工资不平等

文章通过把女性生育率和劳动力市场性别歧视内生化,为理解工资不平等的发展趋势提供了新的视角。研究表明,随着女性家庭地位上升和生育率下降,企业性别歧视程度降低,于是工资不平等将受女性技术工人和非技术工人生育率差异的影响。如果生育率差异扩大,那么技能溢价将上升。当性别工资差距可以影响女性家庭地位时,生育率下降将扩大女性家庭地位对技能溢价的影响。这一影响机制在关于我国农民工调查数据的实证研究中得到了验证。     

Who is Better Off from Trade Liberalization? An Experience from Urban China*

Empirical studies have found that the skill wage gap (difference between wages earned by skilled and unskilled workers) narrowed in the case of the ‘Four Asian Dragons’ as they underwent trade liberalization during the 1960s and 1970s, whereas the gap widened in most of the Latin American countries after they liberalized their economies in the 1980s. China's integration into the world economy since 1978 has been used to explain this phenomenon, but few formal studies have been carried out in China regarding the effects of trade liberalization on the skill wage gap because of the limited availability of data. The present study uses unique household surveys conducted in ten provinces of China in 1988 and 1995 to study this issue. Results show that trade liberalization that occurred in China between 1988 and 1995 was responsible for an average increase of 28.73 yuan (approximately 20 percent of the total increase) in average monthly wages. However, trade liberalization significantly widened the urban skill wage gap in China by introducing an increase in income only for those who had 13 years or more of education (at least junior high school graduates). Interestingly, import liberalization also only benefited those who had more than 9 years of schooling; whereas export liberalization brought wage increases for people with 7–12 years of education. Finally, those with specific production skills from technical schools, rather than those with several years of general education, were mostly favored in the labor market in China between 1988 and 1995.     

Inequality,poverty and prospects for redistribution

This paper demonstrates that poverty and inequality trends can diverge. It then discusses inequality trends and shows that, despite measurement issues, there is consensus that inequality is very high and has been rising over much of the post-transition period. Due to rising inequality within all groups, and particularly the black population, and lower inequality between race groups, within-group inequality has become the dominant form of inequality. That does not, however, detract from the fact that inequality between groups is still very large. High income inequality largely stems from inequality in access to wage income, due more to wage inequality than to unemployment. A Gini coefficient for wage income amongst the employed of above 0.60 effectively sets a floor to overall income inequality. The high wage premium to educated workers derives from a combination of a skills shortage at the top end of the educational spectrum, driving up their wages, and a surfeit of poorly-educated workers competing for scarce unskilled jobs dampening unskilled wages; if the unemployed were to find jobs, it would be in this bottom part of the wage distribution, and consequently this would not much reduce wage inequality. A continuation of the historical pattern whereby only a small segment of the population obtained good schooling would leave the structures underlying the large wage premium unaltered. The time frame for substantial inequality reduction is thus necessarily a long one, while poverty reduction efforts should not wait for this to occur.     

EVALUATING THE GENERAL EQUILIBRIUM EFFECTS OF A WAGE SUBSIDY SCHEME FOR SOUTH AFRICA

Unemployment among semi‐ and unskilled labour has reached severe proportions (over 50%) and threatens the political and economic stability of the South African economy. In this paper a computable general equilibrium (CGE) model of the South African economy is used to assess the effectiveness of a wage subsidy in raising employment of semi‐ and unskilled workers. We find that employment of semi‐ and unskilled workers can be raised quite significantly. Further, the wage subsidy schemes compares favourably with alternative welfare grant schemes in terms of employment growth. However, the results are sensitive to the targeting of sectors and the substitutability between labour of different skill levels.     

The contribution of multinationals to wage inequality: foreign ownership and the gender pay gap

Review of World Economics - While an abundance of studies exists documenting the significant wage premium of multinationals (MNE) and the effects of foreign direct investments on wage inequality,...     

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.     

Trade in information technologies and changes in the demand for occupations

I use data from the World Input-Output Database and show that trade in information technologies (IT) has a significant contribution to the growth in foreign intermediate goods in the 2001–2014 period. China has strongly contributed to the rise in trade in IT and has become one of the major foreign suppliers of IT. I merge these data with the EU KLEMS database and EU Labour Force Survey and obtain a dataset of 12 European countries and 2001–2007 period. I show that IT imports from China are associated with lower IT prices in European countries. The fall in IT prices has increased the demand for high wage occupations and reduced the demand for medium wage occupations. Nearly 25% of the variation in the demand for occupations can be attributed to the trade with China.     

Tracking wage inequality trends with prices and different trade models: evidence from Mexico

Mexican wage inequality rose following Mexico’s accession to the General Agreement on Tariffs and Trade/World Trade Organization in 1986. Since the mid-1990s, however, wage inequality has been falling. Since most trade models suggest that output prices can affect factor prices, this paper explores the relationship between output prices and wage inequality. A Salter–Swan trade model with firm heterogeneity driven by variations in the relative price of tradable relative to non-tradable goods can explain the decline in wage inequality. The paper compares this model’s predictions with Mexican inequality statistics using data on output prices, census data, and quarterly household survey data. In spite of the model’s simplicity, the model’s predictions match Mexican variables reasonably well during the years when wage inequality fell.     

Parenthood and the gender wage gap in urban China

Using data from the Chinese Household Income Project survey and decomposition methods, this study explored the influence of parenthood on the gender wage gap in urban China in 2002 and 2018. Our findings showed that the employment rate is lower for women than men in both childless and with child groups, and the gender gap expanded from 2002 to 2018. The data revealed a parenthood wage penalty in 2002 and a parenthood wage premium in 2018. Moreover, the parenthood wage penalty was greater for women than for men and contributed to the formation of the gender wage gap. We also found that three components: motherhood wage penalty, fatherhood wage premium, and gender wage gap in the childless group contributed to the formation of the gender wage gap. From 2002–2018, the motherhood wage penalty decreased, whereas the fatherhood wage premium increased.     

The internal labour dynamics of the Great Eastern Railway Company, 1870–1913

An important labour market development towards the end of the nineteenth century was the rise of the internal labour market. Railway companies were pioneers in this area, and this article presents an analysis of the career histories of 848 traffic staff workers of the Great Eastern Railway Company. This large longitudinal sample provides the first detailed account of the internal labour dynamics of a pre-1914 railway company, providing a unique insight into an early internal labour market. It shows that there was a clearly structured market for unskilled entrants, that promotion and demotion were an important managerial tool, and that there was a significant wage premium for promotion.