Upstreamness,exports, and wage inequality: Evidence from Chinese manufacturing data

In this paper we investigate within-firm wage inequality across heterogeneous industries that hold different positions in the domestic value chain, and across heterogeneous firms that have different exposure to trade. We find that the wage inequality problem is more severe in upstream industries than in downstream ones, and among firms with greater exposure to trade (i.e., larger export share of sales). Our findings support both classic and new new trade theories on wage inequality. In downstream industries where Chinese firms are typically engaged in processing and assembly work with intensive use of unskilled labor, trade leads to less wage inequality within firms. However, trade also introduces pro-competitive effects which usually benefit exporters and their skilled labor. The results hold after various checks and controls for robustness.     

Wage inequality dynamics and trade exposure in South Korea

South Korea has experienced a great U-turn in its inequality trends during the past few decades. In this paper, we explore the role of international trade in its wage inequality dynamics over the 1998–2012 period, using a unique household panel survey. Our analysis reveals that most of the overall wage inequality occurs within sectors and educational groups rather than between them. However, the share in total inequality of the “between” variation across sectors and educational groups has moderately increased over time. Furthermore, we document that almost the entire aggregate wage inequality in both manufacturing and services occurs within different trade-exposure categories rather than between them, and this pattern is persistent through time. These results suggest that international trade might not be the main driving force behind the rising wage dispersion in South Korea in the last two decades.     

International trade and within-sector wage inequality: The case of South Korea

This paper studies which factors contributed to the changes in wage inequality in Korean manufacturing over the last three decades. By adopting Akerman et al. (2013)’s decomposition method, we examine the relative importance of within-sector and between-sector wage variations in Korean manufacturing over the period of 1980–2012. Our analytic results confirm that within-sector wage variation explains the lion’s share of overall wage inequality. Taking this finding into account, we estimate the impacts of international trade, skilled-biased technological change and labor market conditions on within-sector wage inequality in Korea. Our estimation results suggest that there was a structural change in determinants of wage inequality before and after the mid-1990s. The influence of international trade mainly through heightened import competition on wage dispersion became relatively more conspicuous over the last two decades.     

Trade,technology, and the labour market: impacts on wage inequality within countries

This paper focuses on the widening wage inequality between skilled and unskilled workers within countries and discusses whether trade and technology have contributed to this trend. The paper develops an analytical framework for wage inequality that traces the determinants and their relative roles in wage inequality in different stages of the development of trade theory, especially those considering new evidence after 2011. We find that technology plays a key role in the rise of wage inequality in most countries, while trade plays an increasingly crucial and more complex role in recent years. Skill supply institutions, such as education systems supplying skilled labour or unions participating in wage‐setting processes, suppress the rise of wage inequality in some countries. The paper further outlines the mechanisms through which trade affects wage inequality, including offshoring, firm heterogeneity, labour market frictions and global value chains. We find that trade has indirect effects on technology, which further enlarges the wage inequality among skills. The paper also discusses the policy implications of the impacts of trade and technology on wage inequality.     

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。     

Employment and Earnings: A Case Study of Urban Detroit

This paper investigates the roles of manufacturing employment, neighborhood poverty, and family structure in determining wages among Detroit, MI workers, just prior to the current economic crisis. Employment in manufacturing has been crucial for blacks and whites: 39% of black and of white men in the Detroit metropolitan area worked in manufacturing in 2000. Regression analysis in this paper estimates employment in manufacturing raised wages 15.8% for all workers in the metropolitan area, 24.4% for blacks and 13.8% for whites. It finds a higher wage penalty (4.7%) for blacks in non-manufacturing industries than is found when manufacturing sector jobs are included (2.6%). Wage returns to education were greater in the non-manufacturing employment sector, especially for blacks. Residence in the poorest central city neighborhoods reduced wages significantly for white manufacturing and non-manufacturing workers. Its coefficient was insignificant for black workers. Gender and marital status effects on wages differed between blacks and whites in magnitude: White women suffered a larger penalty for their sex than black women (22.6 versus 9.6%) yet black men enjoyed a greater return to marriage than white men (27.5 versus 25.0%). Controlling for manufacturing reduced the gender wage gap and the returns to marriage for men. These findings suggest greater accessibility for women; and lower returns to marriage in non-manufacturing sectors. Among employed blacks access to manufacturing jobs has been their main source of decent wages. The adverse effects of the industry??s job loss in the 1980s and 1990s impacted all Detroit residents. Other high wage industries have employed relatively few blacks, have not paid them well; and have suffered job loss and slow growth over the period. Education could have raised wages for non-manufacturing workers, but not as much as access to manufacturing jobs. Today as in 2000, Detroit??s residents desperately need job creation or relocation to the central city; and job training and anti-discrimination policy enforcement throughout the metro-area. All of these would be necessary to offset job loss and reduce inequality and poverty in Detroit. The extent to which blacks will benefit from 2010?C11 improvements in manufacturing employment in Detroit depends upon whether private companies and the state provide equal access to the jobs and the training new technologies require.     

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.     

Growth and Productivity in Singapore Manufacturing Industries: 1975–1998

Consistently defined price and volume relatives are constructed for 18 manufacturing industries under the two-digit industry classifications officially adopted in 1996. Industry-specific output and materials price deflators for the period 1974–1998 are also constructed. Where the comparison is possible, we arrive at a markedly different conclusion from those in Tsao (1982, 1985 ) and Young (1994 ), and narrow the cause to a difference in the choice of output measure. The updated accounts show that the conventional index number measure of total factor productivity growth (TFPG) for Singapore manufacturing is 2.7% per annum for the period 1975–1998, and exhibits a cyclical pattern over time.     

Impact of International Trade with Asian Newly Industrialized Countries on Wages in the European Union

This paper deals with the effect of international trade with newly industrialized countries (NICs) on wage inequality in the European Union (EU). We apply a two-stage mandated wage-estimation procedure to assess the respective impact of trade and technology on the relative wages of low-skilled workers. We find weak evidence of a positive impact on the wages of high-skilled workers with regards to trade with high-wage South-East Asian NICs but no evidence for other groups of NICs. We also find evidence of technological change, induced by trade with high-wage South-East Asian NICs. However, this indirect effect of international trade seems to have reduced wage inequality in the EU.     

Labour's share in twentieth-century Sweden: a reinterpretation

The distribution of national income between capital and labour is a classical theme in political economy. This paper takes a long-run perspective to the issue and asks two questions: How did the distribution of income between capital and labour develop in Sweden from 1900 to 2000? And how can this development best be explained? It is shown that labour's share in Sweden in the 100 years from 1900 to 2000 saw three important shifts, and the three shifts are analyzed. Around 1920, there was a surge in labour's share as workers mobilised in trade unions and universal suffrage and the eight-hour working day in manufacturing strengthened the bargaining power of workers. From 1950 until the late 1970s, there was another period of an increasing labour share, when the welfare state expanded and trade unions were strong. Contra the well-known postwar wage moderation analysis, there was no wage moderation in Sweden during the 1950s and 1960s, but rather the opposite: wages increased faster than productivity which caused a redistribution from capital to labour and reduced income inequality. The third shift occurred around 1980 when labour's share started a continuous decrease, beginning with several devaluations intended to increase profitability and competitiveness of Swedish business.     

Import competition from and offshoring to low-income countries: Implications for employment and wages at U.S. domestic manufacturers

Using confidential linked firm-level trade transactions and census data between 1997 and 2012, we provide new evidence on how American firms without foreign affiliates adjust employment and wages as they adapt to import competition from low-income countries. We provide stylized facts on the input sourcing strategies of these domestic firms, contrasting them with multinationals operating in the same industry. We then investigate how changes in firm input purchases from low-income countries as well as domestic market import penetration from these sources are correlated with changes in employment and wages at surviving domestic firms. Greater offshoring by domestic firms from low-income countries correlates with larger declines in manufacturing employment and in the average production workers’ wage. Given the negative association, however, the estimated magnitudes are small, even for a narrow measure of offshoring that includes only intermediate goods. Import penetration of U.S. markets from these sources is associated with relatively larger changes in employment for arm’s length importing firms, but has no significant correlation with employment changes at firms that do not trade. Given differences in the degree of both offshoring and import penetration, we find substantial variation across industries in the magnitude of changes associated with low-income country imports.     

Industrialization and wage inequality in nineteenth-century urban America

What happened to wage inequality during American industrialization? This paper uses old and new data to address this question. The old data are in the form of pay ratios, while the new capture changes in the overall wage distribution, rather than in just the relative pay of workers at the top and bottom. Using payroll information from the Aldrich report for establishments in construction, railroads, and manufacturing, we calculate Theil indices for all production workers. These two data sets provide complementary information but suggest a common conclusion — namely that American wage inequality did not rise perceptibly over the nineteenth century.     

International trade and the relative dispersion of industrial wages and production techniques in 14 OECD countries, 1970–1985

The Factor Price Equalization theorem implies that freer trade would narrow the gap in returns to similar productive factors across countries over time. To determine the empirical relevance of this implication, data for 11 industries in 14 countries over the period 1970–1985 are investigated. Moreover, the paper examines the data for seven industries in the nontrade sector. Regression analyses suggest that the industry-level wages across countries are significantly influenced by the relative dispersion of production techniques at the industry level and, to a lesser extent, by international trade. The estimation of a wage model indicates that the diffusion of technology may have also played a role in the apparent convergence of wages. The findings of this paper suggest that FPE is capable of explaining the cross-country variation in returns to productive factors.     

Effect of intra-industry trade on skill premium in manufacturing in China

In making use of the panel data in 27 manufacturing industries, this paper examines the recent increase in skill premium in China's manufacturing. The paper argues that the recent increase in skill premium in Chinese manufacturing can be partly attributed to the decline in intra-industry trade. A reasonable explanation on this is that the decline in intra-industry trade occurred in the period studied is associated with a decrease in output. This led to a reduction in relative demand of low-skilled workers, which supports the hypothesis of the output-skill substitutability, and finally an increase in skill premium. Further, this paper finds that the negative effect of intra-industry trade on skill premium is larger for high-skilled manufacturing than low-skilled manufacturing. One more result in this paper is that the increase in capital input reduced the skill premium in Chinese manufacturing. The empirical evidence is consistent with a modified model of intra-industry trade with differentiated products and three factor inputs: high-skilled labor, low-skilled labor and capital.     

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.     

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.     

中国制造业竞争优势与产业结构的转型升级研究

文章结合汇总数据和制造业规模以上企业微观数据,全面测算了中国制造业在面临工人工资上涨冲击时,其单位劳动力成本的变化。发现在2004年之前,总体上看劳动力生产率的提高化解了工资的上涨,单位劳动力成本始终下降。而在2004年后,非劳动密集型产业和劳动密集型产业的轨迹开始分化,劳动密集型产业单位劳动力成本开始上升,而非劳动密集型产业单位劳动力成本依然下降。因此,中国制造业未来的竞争优势需依靠产业结构的转型和升级来带动。     

TRADE LIBERALIZATION AND PRICE‐COST MARGIN IN INDIAN INDUSTRIES

Using panel data for 137 three‐digit industries for 1980/81 to 1997/98, the paper examines the effect of trade liberalization on price‐cost margins in Indian industries. An econometric model is estimated to explain variations in price‐cost margins, taking tariff and nontariff barriers among the explanatory variables. The results indicate that the lowering of tariffs and removal of quantitative restrictions on imports of manufactures in the 1990s had a significant pro‐competitive effect on Indian industries, particularly concentrated industries, tending to reduce the price‐cost margins. The paper notes that despite the pro‐competitive effects of trade liberalization reinforced by domestic industrial deregulation, the price‐cost margin increased in the post‐reform period in most industries and aggregate manufacturing, which is attributed to a marked fall in the growth rate of real wages and a significant reduction in labor's income share in value added in the post‐reform period, reflecting perhaps a weakening of industrial labor's bargaining power.     

Chinese imports and income inequality: evidence from six East Asian economies

The study adopts a mixed‐methods design with quantitative and narrative accounts of inequality formation in Hong Kong, Japan, Macau, Singapore, South Korea, and Taiwan. Imports from China, but not elsewhere, have a strong positive impact on domestic income inequality. With growing volume of cheaper imports, local industries lose competitiveness or even relocate to China in some cases. This paper suggests manufacturing employment as one of the causal pathways from Chinese imports to rising income inequality, as the wage gap between the top and bottom widened following the loss of middle‐wage manufacturing jobs.     

The value-added tax reform and labor market outcomes: Firm-level evidence from China

The tax incentives designed to stimulate firm investment may have a large and unexpected impact on labor market outcomes. Using a comprehensive data set on Chinese manufacturing firms during the period 1998–2007 with a difference-in-differences approach, we examine the impact of the value-added tax reform in 2004 on the firm-level labor market outcomes. We find that firms in eligible industries and pilot regions (treated firms) enjoying lower costs of purchasing fixed assets under the reform tended to increase capital investment and reduce employment simultaneously relative to firms that did not have tax incentives (the control firms). Compared with the control firms, the treated firms became more capital intensive but had declines in labor share in value added and average wage. We also find that the employment adjustment is associated with increase in the share of skilled workers in terms of engineers and technicians, but not workers with a college degree or higher.