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.     

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...     

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.     

Tariffs,relative prices and wage inequality: Evidence from China

This paper, based on data from China after its membership into the World Trade Organization (WTO), shows the co-existence of a fluctuating skill premium and rises in wages for both skilled and unskilled labor. Our research provides one specific factor, the tariff reduction biased toward unskilled labor-intensive sectors, to explain and quantify the magnitudes of skill premium dynamics using the mandated-wage approach. The empirical evidence indicates that sector-biased tariff reductions have widened wage inequality in China through their effect on product prices. World price competition, on the other hand, has contributed to declining wage inequality via product prices, which is consistent with the endowment-based expectations of China's integration into the more skilled-labor abundant world.     

全球生产网络、贸易结构与工资差距：来自中国的证据

论文通过建立全球生产网络的中间投入品模型,实证分析中间品贸易对一国技术劳动力和非技术劳动力工资差异的影响。研究发现：加工贸易是中国融入全球生产网络的典型形态;其出口会扩大对技术和非技术劳动力的需求。但技术劳动力的工资上涨幅度要高于非技术劳动力的工资涨幅,从而使相对工资差距扩大。短期内,中间品的进口减少了技术劳动力的需求和就业,但长期来看中间品进口会扩大对技术劳动力的需求,相对工资差距拉大。人力资本投资的供给增长由于未能满足劳动力市场的需求,从而在一定程度上表现为工资差距拉大;但长期来看,人力资本积累机制的完善使得相对工资差距会逐渐缓和。     

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.     

The Impact of Foreign Trade on the Employment of Unskilled U.S. Workers: Some New Evidence

This paper explores four empirical relationships reflecting the impact of foreign trade on the employment of unskilled workers: (i) the direct relationship between net exports and embodied education of the corresponding goods; (ii) the changes in domestic prices accompanying changes in net exports; (iii) the relationship between real or potential import competition and defensive measures such as more investment or increasing the skill level of the labor force; and (iv) the relationship between foreign trade and domestic prices. None of these exercises suggests that foreign trade has much impact on the employment of less skilled U.S. workers.     

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.     

The Effect of Immigration on Unskilled Native Workers: Evidence from a Natural Experiment

This study exploits the natural experiment, provided by the start of the second intifada, to measure the effect of immigration on the wage and employment of unskilled native workers. It finds that immigration has no effect on the wage or employment of unskilled Jewish workers. The wage and employment of the least‐skilled Israeli Arab workers (with zero to five years of schooling) are adversely affected by immigration. The slightly more skilled Arab workers (with six to 11 years of schooling), in contrast, are positively affected by immigration, suggesting a complementarity effect with this group. Different explanations are proposed.     

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.     

Openness, Technological Change and Labour Demand in Pre-Crisis Indonesia

This paper examines the impact of export orientation, import competition, foreign ownership and the rate of capital accumulation on the relative demand for skilled and unskilled labour in pre-crisis Indonesia. Estimates from an interrelated factor demand analysis indicate that openness and foreign ownership, by themselves, acted to raise the relative demand for unskilled workers in the pre-crisis period, while the newness of capital was associated with increased relative demand for skilled workers. Overall, the relative demand for unskilled workers increased yet their relative wage position weakened. These contrasting relative employment and wage changes are consistent with the examined demand shocks and the greater elasticity of supply of Indonesian unskilled relative to skilled labour.     

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.     

A Picture of Wage Inequality and the Allocation of Labor Through a Period of Trade Liberalization: The Case of Brazil

This paper constructs a picture of the labor market impact of trade liberalization in Brazil. We examine the level and dispersion of wages, the skilled wage premium, and employment composition before and after trade liberalization. After trade reform, there was a rise in the returns to college education which, since the share of college workers also rose, is attributable to rising demand. This change did not increase overall wage dispersion because of the small share of college-educated workers and because of decreasing returns to intermediate levels of education.     

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.     

我国工资差距的影响因素分析——基于制造业面板数据的研究

本文借鉴成本函数的研究方法,采用我国1993～2010年19个工业细分行业的相关数据考察了影响熟练劳动与非熟练劳动相对工资变化的因素。通过计算行业的VSS和回归估计发现,国际贸易和技术进步才是拉动我国相对工资差距的主要原因,外包对相对工资差距起到微弱的缩小作用。根据行业的要素密集度,本文继续将工业行业划分为3个子样本,进一步考察了这些因素对不同要素密集型部门的相对工资的影响,结论与总体回归基本一致。本文的结论与理论预期的不一致,可能是由中国劳动力市场的特殊性和中国加工贸易的特点决定的。     

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.     

Macroeconomic and Sectoral Effects of International Trade: A Vector Error-Correction Study

This study examines various claims that in the U.S., international trade has contributed to a loss of manufacturing base, an increased gap between unskilled and skilled wages, lower employment, and a loss of productivity. Cointegration tests indicate that in the long run and at the macro level, the ratio of trade to output and FDI to output are correlated with the manufacturing share of output, the ratio of unskilled to skilled wages, labor productivity, and the employment rate. However, Granger causality tests reveal that, with one exception, causation does not run from trade to the domestic variables, the only exception being that FDI Granger causes productivity. When the focus is shifted to the manufacturing sector, the results support the proposition that openness to trade has had adverse effects on this sector.A slightly different version of this paper was presented at the Fifty-sixth International Atlantic Economic Conference, October 16–19, 2003 in Quebec City, Canada. The research reported in this paper is partially funded by a grant from the Institute for Global Economic Affairs at Marquette University.     

生产者服务业FDI与东道国工资差距:理论与实证

本文从理论和实证两个角度,阐述并验证了生产者服务业FDI对东道国熟练与非熟练工人的工资差距的影响。通过一个将生产者服务作为中间投入的两部门理论模型,我们发现,生产者服务业FDI使得服务品种增加,并造成熟练工人从一般制造业部门流向服务(或高技术)部门,导致熟练工人工资上升而非熟练工人工资下降。本文选取上海市的数据,建立了4个回归模型进行实证检验。结果表明,生产者服务业FDI对熟练与非熟练工人的工资差距会产生直接而显著的扩大作用,但是它同时能通过其他解释变量,如人均GDP、人均人力资本、第三产业就业率以及第二产业的全员劳动生产率对工资差距产生间接的收缩作用。最后,本文针对回归结果得出了相应的结论和启示。     

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.     

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.