Wage inequality in Turkey, 2002–10

This paper studies the evolution of wage inequality in Turkey using household labour force survey data from 2002 to 2010. Between 2002 and 2004, the relative supply of more‐educated workers to less‐educated workers remained constant while their relative wages decreased in favour of less‐educated workers. However, between 2004 and 2010, the relative supply of more‐educated workers to less‐educated workers rose, while their relative wages remained constant or kept increasing in favour of more‐educated workers. This suggests factors other than those implied by a simple supply‐demand model are involved, such as skill‐biased technical change or minimum wage variations. The decomposition of wage inequality reveals that the price (wage) effect dominates the composition effect particularly in the first period. Our results show that the real minimum wage hike in 2004 corresponds to a major institutional change, which proved to be welfare‐increasing in terms of wage inequality. The upper‐tail (90/50) wage inequality decreased between 2002 and 2004 and stayed constant thereafter, whereas the lower‐tail (50/10) wage inequality decreased throughout the period. Our findings thus provide evidence supporting the institutional argument for explaining wage inequality.     

Skilled–unskilled wage inequality: A general equilibrium analysis

The paper develops a static three sector competitive general equilibrium model of a small open economy in which skilled labour is mobile between a traded good sector and a non-traded good sector and unskilled labour is specific to another traded good sector. The capital is perfectly mobile among all these three sectors. We examine the effects of change in different factor endowments and of globalization on skilled–unskilled wage inequality. We find that the effect of a change of a factor endowment on wage inequality depends on the factor intensity ranking between two skilled labours using sectors and on the relative strength of the marginal effects on demand for and supply of non-tradable good. We also find that a decrease in the price of the product produced by skilled (unskilled) labour using traded good sector lowers (raises) the skilled–unskilled wage inequality.     

Skilled–unskilled wage inequality,nontraded good and endogenous supply of skilled labour: A theoretical analysis

The paper develops a static four sector competitive general equilibrium model of a small open economy in which skilled labour is endogenously produced by the education sector and is mobile between a traded good sector and a nontraded good sector. Capital is also perfectly mobile among the education sector, skilled labour using traded good sector and the nontraded good sector. However, land and unskilled labour are specific to another traded good sector. We analyse the effects of change in different factor endowments and reduction in tariff rate on skilled–unskilled wage inequality. We find that the effect of a change in different parameters on wage inequality depends on the factor intensity ranking between two skilled labour using sectors and on the relative strength of the marginal effects on demand for and supply of nontraded final good. We also analyse the effects of changes in different parameters on the supply of skilled labour.     

Trade liberalization,technology, relative factor supplies and the relative wage: evidence from the South

There is much controversy about the role that trade liberalization, technological change and relative factor supplies have played in bringing about changes in the relative wage of the unskilled workers. Much of the empirical work on this issue has focused on the industrial countries and paid little attention to developing countries. To fill this gap, this study develops a special data set to examine the relative wage behaviour of a large number of developing countries. An empirical model based on the theory is used to test different explanations of the relative wage change. As predicted by the technology explanation, the empirical analysis in the study finds a significant negative link between the relative wage of unskilled workers and the technology index. The analysis, however, does not find a significant role for labour supplies or trade liberalization in determining the relative wage of unskilled–skilled workers.     

A Welfare Analysis of Policy Responses to the Skilled Wage Premium

I build a model with heterogeneous agents which is consistent both with rising wage inequality across education levels and with an increasing relative number of college graduates. I use the model to investigate the welfare implications of policies which influence the structure of net wages. Each policy affects agents directly through taxes and subsides and indirectly as wages respond to changes in the relative supply of skilled and unskilled workers. I find that as wage inequality grows due to skill-biased technological change, policies which promote a more egalitarian wage structure can become increasingly acceptable to all agents and that for nearly all agents, education subsidies may be preferred to direct transfers as a means of decreasing wage inequality. Journal of Economic Literature Classification Numbers: E60, I28, H52.     

Looking back, looking ahead: Biased technological change, substitution and the wage gap

The implications of ICT on wage inequality are studied by applying a CES production function with skilled and unskilled labour. Skill-biased technological change increases wage inequality. The result is reinforced in a two-sector general equilibrium model if the income elasticity of the demand for high-tech goods and the elasticity of substitution between final goods are larger than one.     

Wage Inequality and Human Capital Formation under Migration Possibilities

I examine the problem in the relationship between wage inequality and human capital formation under migration possibilities. Unlike previous analyses, I incorporate the education market and the education price into the analysis, and assume that workers bear the pecuniary cost for receiving education. Given such an assumption, migration possibilities do not necessarily increase education demand since the larger demand for education raises the education price and lowers the net return on education. By modelling an economy where workers in the home country (the labour‐sending country) comprise skilled and unskilled workers and they can migrate to the foreign country (the labour‐receiving country), I show that brain gain and brain drain occur simultaneously in the home country. In particular, if wage inequality is larger in the foreign country than in the home country, skilled workers experience brain gain and unskilled workers experience brain drain in the home country. On the other hand, if wage inequality is sufficiently larger in the home country, brain drain occurs in skilled workers and brain gain in unskilled workers.     

Labour-market institutions, (un)employment,wages, and growth: theory and data

We analyse the implications of labour-market institutions on wage inequality in favour of skilled labour, on relative unemployment of unskilled labour, and on the economic growth rate in two clusters resulting from 27 OECD countries: Cluster 1, closely related with the Anglo-Saxon model, and Cluster 2, dominated by the Continental-European model. By linking the unskilled wage to the skilled one in Cluster 2, due to the indexation of social benefits to per-capita income, we accommodate the observed paths of the three variables in both clusters between 1991 and 2008: Cluster 1 presents a higher wage inequality in favour of skilled labour, a lower unemployment of the unskilled labour, and a better economic growth rate.     

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.     

A Directed Search Model of Inequality with Heterogeneous Skills and Skill–Biased Technology

In this paper I analyse the directed search/matching problem in an economy with heterogeneous skills and skill–biased technology. A unique symmetric equilibrium exists and is socially efficient. Matching is partially mixed in the equilibrium. A high–tech firm receives both skilled and unskilled applicants with positive probability, and favours skilled workers, while a low–tech firm receives only unskilled applicants. The model generates wage inequality among identical unskilled workers, as well as between–skill inequality, despite the fact that all unskilled workers perform the same task and have the same productivity in the two types of firms. Inequality has interesting responses to skill–biased technological progress, a general productivity slowdown, and an exogenous increase in the skill supply elasticity.     

Female labour force participation in an era of organizational and technological change

Abstract The supply of skilled female labour increased significantly at the beginning of the twentieth century as women assumed positions in the newly created clerical workforce. Evidence suggests that despite this increase in labour supply, the wage paid to female clerical workers increased over the period and that the ratio of female clerical wages to male manufacturing wages was roughly constant. These labour market facts can be accounted for in a dynamic general equilibrium model in which an exogenous increase in human capital induces an increase in demand for skilled clerical workers. While induced technological change that favours skilled workers may account for the observed increase in female real wages, explaining the stagnate relative weekly wages paid to female clerical workers requires a framework that includes organizational change.     

Organized crime and wage inequality

This paper stresses the role of industrial organization of crime, and explores how organized crime affects wage inequality. We find that, when only unskilled workers (or both skilled and unskilled workers) engage in organized crime, an increase in the number of criminal groups will increase wage inequality if (1) the skilled sector is more capital intensive than the unskilled sector, and (2) the price elasticity of demand for the skilled product is large enough. However, when there are only skilled workers engaging in organized crime, condition (1) is sufficient to widen wage inequality, irrespective of the price elasticity.     

‘Marginal employment’ and the demand for heterogeneous labour – elasticity estimates from a multi-factor labour demand model for Germany

We develop a structural multi-factor labour demand model which distinguishes between eight labour categories including marginal employment, i.e. low-paying jobs with only a few working hours and partially exempted from employee's social security contributions. Using a new panel data set for Germany, the model is estimated both for the number of workers and total working hours. For unskilled and skilled workers in full-time employment, we find labour demand elasticities similar to previous estimates. Our new estimates of own-wage elasticities for marginal employment range between??0.13 (number of male workers in West Germany) to??1 (working hours for women).     

Economic status of households and labour supply to market and non-market activities mdash; some results from a poor rural economy

Assuming a given underlying utility structure for all households, we have demonstrated that the differential labour supply behaviour among household categories results owing to the different sets of constraints they face depending on their economic status and asset ownership. Using the criteria implied by the theoretical model four household gorups are defined. The labour supply functions estimated for these four groups support the theoretical result of significantly different supply behaviour. The empirical exercise, as expected, indicates that the labour supply decision of the subsistence group is guided by their need to achieve the minimum level of consumption while the middle-income households, who do not have enough non-labour income to meet their minimum subsistence need, tend to work longer hours in market activities than the workers from high-income households. However, market labour supply by high-income households is found to be relatively more sensitive to changes in the wage rate. The behaviour of the household groups differ so significantly that if an aggregate model is estimated ignoring inter-household differences, the predicted hours will grossly over-estimate labour supply to market activities.     

Unskilled immigration,technical progress,and wages—Role of the household sector

This paper revisits the relationship between unskilled immigration and skilled wage in the context of the BREXIT episode. Our simple general equilibrium model introduces a household sector, the inclusion of which shows that both return to capital and effective skilled wage may increase with a greater inflow of immigrants. This is a novel outcome in the theory of trade and factor flows. In addition, though technical progress in a skill‐intensive sector raises wage inequality, it no longer displaces traditional jobs. Here, the usual negative impact of unskilled immigration on the traditional sector is mitigated by increased returns to the unskilled workers.     

Creating low skilled jobs by subsidizing market-contracted household work

The paper analyses the determinants of household work contracted in the German shadow economy. The German socio-economic household panel, which enumerates casual domestic employment, is used to estimate the demand for such household work. The regressors include regional wage rates, household income and several control variables for household composition. It is found that the demand for household work in the shadow economy is very income elastic. This suggests that targeted wage subsidies, linked to household work agencies, would be very effective in raising the legal demand for domestic help. A wage subsidy of 50% of wage costs could thus establish up to 500?000 new jobs for previously unemployed or non-working low skilled workers. The net fiscal costs of such a scheme are about 6.200 Euro per full-time job. In addition, society benefits from more law enforcement and from a raised female labour supply, especially by highly qualified mothers.     

Skill premium in Portuguese manufacturing industries

The debate between the skill-biased technological change (SBTC) approach and the international trade (IT) explanation to obtain the best explanation for the wage gap between skilled and unskilled workers continues. In this article, we divide the Portuguese manufacturing industries into high-tech and low-tech and study the approach that best justifies the wage gap, for the period between 2007 and 2014. The results point out that the SBTC approach is the main explanation to the formation the wage gap between the labour force with tertiary education (skilled) and with secondary and primary education (unskilled).     

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.     

技能偏向型技术进步必然加剧工资不平等吗?

劳动经济学界在20世纪90年代形成了共识:美国等OECD国家从70年代末到90年代末的教育升水(不同教育水平工人的工资差距)持续上升是由技能偏向型技术进步导致的。但90年代共识无法解释第二次世界大战后美国在技能偏向型技术进步下教育升水并非总是上升的事实。此外其理论基础在于技能偏向型技术进步下抑制低技能劳动力需求的腐蚀效应和提升高技能劳动力需求的市场规模效应会加剧工资不平等。本文指出其理论基础的缺陷,并将教育效率和劳动力市场的技能供求关系整合在一个技能偏向型技术进步与工资不平等都处于内生演化的动态模型中。本文证明技术进步率的提升在短期会提升工资不平等,但当教育系统的效率处于一定的区间时,技能偏向型技术进步在长期会降低工资不平等。因此,本文的研究挑战了90年代共识的悲观论点,并丰富了有关技能偏好型技术进步对于工资不平等影响的研究。     

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.