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.     

Skilled and unskilled wage dynamics in Italy in the 1990s: changes in individual characteristics,institutions, trade and technology

In this paper, we use individual micro data on workers combined with industry and regional data to study the wage dynamics of skilled and unskilled workers in Italy in the 1991–1998 period. In contrast to previous empirical studies, our data make it possible to analyse, within a single framework, the role of many of the factors indicated in the literature as possible determinants of skilled and unskilled wage dynamics: changes in the individual characteristics of workers, changes in labour market institutions, increasing international integration, and skill‐biased technological progress. Our results show that international integration, both in terms of trade in goods and in terms of international labour mobility, plays a role in determining the wage dynamics of skilled (white‐collar) and unskilled (blue‐collar) workers. Moreover, in line with labour economics research, our findings show that the individual characteristics of workers and the institutional variables are more relevant in explaining skilled and unskilled wage dynamics than wage differentials.     

Wage inequality and skill supplies in a globalised world

We investigate empirically, and explain theoretically, how the relative wages of skilled and unskilled workers vary with their relative supplies in open economies. Our results combine the insights of simple labour market and trade models. In countries that trade, relative wages respond inversely to variation in skill supplies, but the response decreases with the degree of openness to trade and is small in very open countries. To reconcile our results with standard estimates of the elasticity of substitution between skilled and unskilled workers, we allow also for the influence of directed technical change and income elasticity of demand for skill-intensive goods.     

An analysis of the demand for skill in a growing economy

We construct a trade theoretic model of skill formation with skill as a produced intermediate input. Capital is required for production as well as for education which transforms unskilled labor into skilled. We use this model to reflect analytically on India's rising requirement of skilled manpower. We show that even if growth of capital and supply of skilled manpower match, relative stagnation of unskilled manufacturing sector will magnify the gap between growth in demand and supply of skill. This may happen, for example, if there is a vast pool of workforce who may not have even the basic education to qualify as “unskilled” and excessive capital flows into the skilled sector. Thus a country with lack of education at a very basic level will be forced to import skilled manpower from the rest of the world.     

Globalization,product differentiation,and wage inequality

Abstract This paper develops a two‐country, general equilibrium model of oligopoly in which the degree of horizontal product differentiation is endogenously determined by firms’ strategic investments in product innovation. Consumers seek variety and product innovation is more skill intensive than production. Stronger import competition increases innovation incentives, and thereby the relative demand for skill. An intra‐industry trade expansion following trade liberalization can therefore increase wage inequality between skilled and unskilled workers. As long as some industries remain shielded from international competition, the welfare implications of globalization are found to be generally ambiguous.     

Agglomeration and fair wages

Abstract.  This paper implements a fair wage constraint into an analytically tractable core-periphery agglomeration model. This enables us to study the role of imperfect labour markets for the pattern of agglomeration. In the short run, a marginal increase in fair wage preferences leads to an unambiguous compression of the national factor price differential between skilled and unskilled labour, involving an increase in the unemployment rate of unskilled workers. In the long run, this mechanism renders full dispersion of an unstable equilibrium already at higher trade costs than in perfect labour markets. There is a tendency for fair wage preferences to enforce agglomeration.     

Intra‐industry Trade Liberalization: Why Skilled Workers are More Likely to Support Free Trade

This paper presents a theoretical model and empirical analysis that connects the prevalence of intra‐industry trade with increased wage inequality from trade liberalization in both skilled and unskilled labor abundant countries. The Stolper–Samuelson effect is incorporated into an intra‐industry trade liberalization (intra‐ITL) hypothesis where skilled labor opposes protectionism in all countries engaged in intra‐industry trade because skilled workers gain at the expense of unskilled workers from multilateral trade liberalization within the skill‐intensive sector. We examine empirical evidence on whether skilled individuals are more supportive of trade liberalization than unskilled individuals across 31 countries with different levels of intra‐industry trade and skill endowments. We find that the extent to which countries engage in intra‐industry trade in high‐tech commodities is strongly linked with the intensity of opposition to protection by skilled labor. Regression results strongly support our hypothesis that skilled workers, almost everywhere, are more likely to support free trade.     

Foreign capital inflow,skilled–unskilled wage inequality and unemployment of unskilled labour in a fair wage model

This paper has developed a three-sector general equilibrium framework that explains unemployment of both skilled and unskilled labour. Unemployment of unskilled labour is of the Harris–Todaro (1970) type while unemployment of skilled labour is caused due to the validity of the FWH in the high-skill sector. There are two types of capital one of which is specific to the primary export sector while the other moves freely among the different sectors. Inflows of foreign capital of either type unambiguously improve the economic conditions of the unskilled working class. However, the effects on the skilled–unskilled wage inequality and the extent of unemployment of both types of labour crucially hinge on the properties implied by the efficiency function of the skilled workers.     

Heterogeneity of imported intermediate inputs and labour: evidence from India’s input tariff liberalization

This article explores whether the nature of imports matters when examining the effects of trade on plant-level labour outcomes. Previous literature that examines this question mainly considers imported intermediate inputs as a homogenous group and is unable to reach a consensus on the effects of input tariff liberalization on employment and wages of skilled and unskilled workers. Exploiting detailed product-level information available on intermediate inputs from plant-level data for the Indian manufacturing sector, I distinguish between plants that import mainly for quality considerations as opposed to plants that seek imports as cheaper alternatives to domestic inputs. I find that strong complementarities exist between skilled workers and imported inputs for plants importing high-quality inputs. For plants importing intermediate inputs mainly as a cost-cutting strategy, input tariff liberalization leads to an increase in employment of both skilled and unskilled workers, but a decline in skill composition. This can best be explained as a strategy that achieves economies of scale. On average, as input tariffs liberalize, importing plants employ more workers and pay higher wages than non-importing plants.     

Wage inequality between and within groups: trade-induced or skill-bias technical change? Alternative age models for the UK

According to recent econometric studies, technical progress is the main source of the increasing skill premium in the UK and the US. However, it is not yet clear if technical progress is skill-bias or sector-bias and, most importantly, if the use of foreign technology has a role to play. By using alternative AGE models for the UK economy, I show that both trade-induced sector-bias technical change and skill-bias technical change can explain the stylised facts of the UK economy: tertiarisation; deindustrialisation; openness to foreign markets; increased skill premium; rise in wage inequality within the skilled; and unskilled labour groups. However, the model with sector-bias technical change due to trade performs better, because it can also explain two other important stylised facts: the decline of the wage rate of unskilled workers; and the large increase of imported capital goods.     

Labour mobility and the redistributive effects of trade integration

This paper addresses the role of mobility costs in shaping the effects of trade integration on wage inequality and welfare. We present a three-factor, two-sector model in which the production technology exhibits capital-skill complementarity and the cost of moving across sectors differs between unskilled and skilled workers. Results show that trade integration increases aggregate welfare, but it also raises wage inequality, both within and across skill categories. We also model a public re-training program, financed by a proportional tax levied on skilled workers, which reduces the mobility cost of unskilled workers. We show that even if the re-training programme entails some welfare losses, it can reduce both within and between wage inequality, while still making free trade Pareto superior with respect to the no-trade regime.     

The demand for skills and labour costs in partner countries

We analyse the consequences of trade integration in Europe (1995–2005) detecting how the labour costs in partner countries affect the domestic demand for high‐ and low‐skilled labour in ‘Old’ (EU‐15) and five ‘New’ EU member states. In general, independently of the skill level of workers, the results suggest complementarity between domestic and foreign labour. However, when we take into account the typology of sectors, the demand for the high skilled in low skill intensive sectors in ‘New’ EU members is boosted by the increase of the average labour cost in ‘Old’ EU members. Thus in low skill intensive sectors, the high skilled in ‘New’ member countries can substitute for employment in EU‐15 countries.     

A Schumpeterian North–South Growth Model of Trade and Wage Inequality*

The paper presents a dynamic general‐equilibrium model of interindustry North–South trade that is used to analyze the effects of trade liberalization on the Northern wage distribution. Both countries have a low‐tech sector where consumer goods of constant quality are produced by use of unskilled labor. The North also has a high‐tech sector that employs skilled labor and features a quality‐ladder model structure with endogenous growth. Both innovation and skill acquisition rates are endogenously determined. In a balanced trade equilibrium, it is found that Southern‐originated (Northern‐originated) trade liberalization leads to an increase (decrease) in Northern wage inequality both between skilled and unskilled workers and within the group of skilled workers. The endogenous change in the Southern terms of trade determines the direction of change in unskilled wages in both the North and the South.     

Skilled–unskilled wage inequality,product variety,public input and increasing returns: A static general equilibrium analysis

The paper develops a four sector small open economy model with two traded final good sectors, a public intermediate good producing sector and a nontraded good sector producing varieties of intermediate goods. There are three primary factors: capital, skilled labour and unskilled labour. Industrial sector producing a traded good uses capital, intermediate goods and skilled labour as inputs. Intermediate goods producing sector also uses capital and skilled labour. Public input producing sector and the agricultural sector producing the other traded good use capital and unskilled labour as inputs. It is shown that, if production technologies are the same for the agricultural sector and the public input producing sector and if the scale elasticity of output is very low, then an increase in capital stock (unskilled labour endowment) raises (lowers) the skilled–unskilled wage ratio. However, an increase in skilled labour endowment does not produce any unambiguous effect. On the other hand, an increase in the tax rate on industrial output and/or an increase in the price of the agricultural product, armed with the same set of assumptions, lowers the skilled–unskilled wage ratio.     

Factor price overshooting with trade liberalization: theory and evidence

This paper develops an intra‐industry trade model with skilled and unskilled labor as factors of production, endogenous accumulation of skilled labor and firm heterogeneity in factor intensities to examine the effect of trade reforms on factor prices. Since exporters are more skill intensive than non–exporters, a decrease in trade barriers initially increases wage inequality between skilled and unskilled workers, as a result of an increase in the relative demand for skilled labor. Over time, however, as agents respond to the change in relative wages by investing in skilled labor, the relative wage of skilled labor decreases. Evidence from Chilean plant–level data supports the idea of factor price overshooting with trade liberalization.     

Stick,Carrot and Skill Acquisition*

We evaluate the impact of specially designed youth unemployment programmes (YUPs), intended to provide young unemployed unskilled workers with skills. If unemployment among skilled workers is lower than among unskilled workers, YUPs imply that unemployment falls. However, YUPs potentially crowd out ordinary training. We set up an equilibrium matching model with endogenous skill choice and examine the impact of an increase in programme participation. We derive a condition for crowding out of ordinary training, as well as a condition for an increase in the skilled labour force and thereby reduced unemployment. The impact of YUPs on welfare and wage dispersion is also considered.     

Firms’ location decision across asymmetric countries and employment inequality

This paper analyzes the effect of globalization (lower trade costs) on production and trade patterns if, firms are vertically linked, stages of production differ in labor-factors intensity and countries differ in labor-factors prices. In order to reflect the “Continental Europe” experience, relative wages are assumed fixed and spatial changes in production are translated into changes in relative (skilled to unskilled) employment levels. The asymmetry in factors prices across countries results in a unique agglomeration equilibrium for a broad range of trade costs. At low trade costs, firms’ location depends on production costs—vertical specialization occurs. This paper also provides a consistent explanation of the observed increase in employment inequality between skilled and unskilled workers in relatively high-unskilled wage countries.     

Capital mobility, skill formation and polarization

We bring in hierarchical education and skill formation within a standard Jonesian specific-factor model of production and trade for a developing economy. There are three types of labor, unskilled, medium skilled and high-skilled. The unskilled can only develop into medium-skilled and medium-skilled into high-skilled. As capital becomes internationally mobile, educational capital gets concentrated in particular types of education. In the process the society gets polarized between the highly educated and the absolutely uneducated.     

Exporting firms and the demand for skilled tasks

This paper explores the link between exports and the demand for skilled tasks. Using the Chilean Encuesta Nacional Industrial Anual (ENIA), an annual census of manufacturing firms, we first show that Chilean exporters utilize more skills than Chilean non‐exporters. More importantly, we establish a distinct pattern of task differentiation among exporters both within skilled and unskilled tasks. Exporting firms demand the services of skilled specialized workers (engineers) as opposed to skilled administrative workers and managers. In addition, exporters demand less unskilled labour, especially blue‐collar operatives. This suggests that exporters substitute skilled engineers for unskilled blue‐collar workers to perform export‐related tasks.     

Impact of Chinese growth and trade on labor in developed countries

This paper examines the impacts of growth in China's economy and trade on the skill premium of labor in developed countries. We utilize a unique global dataset that disaggregates workers by occupations to identify impacts across labor categories with different skill sets, complementing the widely used GTAP Data Base in the CGE framework offered by the GTAP model. To study the impacts of China's fast-paced growth, we model the counterfactual, i.e., what if China grew and opened at a more modest rate; we then compare this baseline with China's actual growth. Results indicate that a strong rise in manufacturing exports from China to the US impacts output and employment in the US. The US shifts its production away from light manufacturing sectors to more service-oriented sectors that also tend to engage higher skilled labor. There is a small decrease in the real wages of unskilled labor and a rise in the real wages of skilled labor. Interestingly, not all categories of unskilled labor lose, rather those that are more directly linked with manufacturing sectors are impacted; unskilled ‘service and shop workers’ and the unskilled ‘agricultural workers, machine operators, assemblers, craft workers, and others’ observe a small decline in real wages, while the impact on unskilled ‘clerks’ is insignificant. For all categories of skilled workers, there is an increase in real wages primarily driven by the shift in production to services and high-skilled labor intensive categories, resulting in the rising skill premium. Hence disaggregating the labor data provides greater depth on the understanding of the differential impacts on domestic workers resulting from trade, and thereby guides policy on how these differential impacts can be smoothed through redistribution of benefits. Consistent with other study findings, there is a positive impact on overall growth and welfare in the US, EU and Australasia.