Wage differentials by sector and gender: a quantile analysis for the Spanish case

This paper analyses existing wage differentials between workers in the public and private sectors and by gender in Spain. This analysis is run throughout the entire earnings distribution and observed wage differentials are decomposed into a part explained by differences in productive characteristics and a part due to differences in returns to such characteristics. Our results show that public sector workers tend to earn higher wages than private employees, although most of this sector wage gap is due to better public workers’ productive characteristics. A wage premium in favour of men is also found in both the public and private sectors, with the gender wage gap greater at the top of the earnings distribution.     

Gender wage gap studies: consistency and decomposition

This paper reviews the empirical literature on the gender wage gap, with particular attention given to the identification of the key parameters in human capital wage regression models. This is of great importance in the literature for two main reasons. First, the main explanatory variables in the wage model, i.e., measures of work experience and time-out-of-work, are endogenous. As a result, applying traditional estimators may lead to inconsistent parameter estimates. Second, empirical evidence on the gender wage gap hinges on estimates of the parameters of interest. Accordingly, their economic meaning may be limited by restrictive assumptions included in wage models. This challenges both researchers and policymakers who require precise measures of the gender wage gap in order to create and enforce efficient equality policies. This paper is a substantially revised version of the first chapter of my thesis. I am grateful to Christian Dustmann and Wendy Carlin for their great support and comments. I also thank Bernd Fitzenberger, colleagues at the Norwegian School of Economics and Business Administration and IZA, and three anonymous referees for their helpful comments and suggestions.     

The effects of structural change and economic liberalisation on gender wage differentials in South Korea and Taiwan

This paper investigates the sources of divergent trends in genderwage differentials in two important newly industrialised economies(NIEs), South Korean and Taiwan. As these economies have enteredthe 'post-industrial' phase of development, gender wage differentialsin Taiwan's manufacturing sector have widened, while in Koreathey have narrowed. Decomposition analysis is used to broadlyidentify sources of change in gender wage differentials. Multivariateregression analysis is relied on to differentiate the impacton the gender wage gap of (1) macro-levels policies, (2) institutionalfactors, and (3) shifts in labour demand and supply. In additionto the predictable effects of several standard supply-side variables,in Taiwan physical capital mobility is found to have contributedto a wider gender earnings gap. Women's greater concentrationin industries where capital is mobile may explain this result.The effects of capital mobility in Korea appears to differ,which may be due to the dissimilar characters of outward FDIfrom that country.     

Immigration and domestic wage: an empirical study on competition among immigrants

While studies on the wage effects of immigration focus on native workers, there is significantly less information on the wage effects of immigration on domestic foreign-born workers. In addition to analysing the impact of immigration on wages of native workers, in this article, we estimate the internal competition among foreign-born workers in the United States. Firstly, using data from the Current Population Survey, we find no empirical evidence supporting the substitutability of native workers for immigrants. Secondly, there is no statistical difference between skilled and unskilled immigrants on the influence of the domestic labour market outcomes. Finally, there is no internal competition among immigrants. The income of non-citizen workers mainly depends on state and national levels of economic situations, not the number of non-citizen workers available in the labour market.     

Labour market effects of public capital stock: evidence for the Spanish private sector

This paper provides a new rationale for the positive effect of public capital stock on employment and wages. We show that higher levels of public capital reduce wages along the wage equation and enhance employment due to the resulting larger elasticity of labour demand with respect to wages. The estimation of a structural model for the Spanish private sector reveals that this wage channel is empirically relevant. We use the estimated parameters to simulate the recent incidence of the ratio of public to private capital stock on the private sector economic performance. We find (i) sizeable effects on employment, capital stock and gross domestic product, and (ii) that the wage channel is particularly important for employment.     

中国行业收入不平等问题的解析

进入新世纪以来,中国行业收入不平等有持续扩大的趋势。基于回归方程的Shap-ley分解结果表明,人力资本、所有制、资本投资、技术等因素对行业收入差距有显著影响,其中人力资本对行业收入差距的贡献约为45%,所有制的贡献在20%以上。因此在治理措施上,实施教育均等化,提高教育回报率,开放垄断行业的劳动力市场,推行劳资谈判制度可以有效缓解行业收入差距持续扩大的问题。     

Economic liberalization and wage inequality in the presence of labour market imperfection

This paper is purported to analyze the consequences of liberalized economic policies on the skilled–unskilled wage inequality in the developing countries using a three sector general equilibrium model reasonable for at least a few developing economies. The analysis of the paper has found that the wage inequality rises unambiguously due to a reduction of import tariff from the low-skill manufacturing sector. However, an inflow of foreign capital produces a favourable effect on the wage inequality under a reasonable factor intensity condition. Interestingly, contrary to the common wisdom, a policy of labour market reform may raise the competitive unskilled wage and improve wage inequality under reasonable condition.     

大学生就业难：基于劳动力甄别机制转变的分析

由于高校扩招，大学毕业生的数量急剧增加，使得传统的基于教育水平的甄别机制失灵，取而代之的是基于工作经验的甄别机制。因此，缺乏工作经验成为大学生就业越来越难的主要原因。本文分析了这种新甄别机制产生的机理，并认为加强大学生职业化素质教育是弥补工作经验缺乏的重要途径。     

Recent decline in wage inequality and formalization of the labour market in Argentina

Labour market conditions improved during the 2000s in Latin America, a process that included a reduction in the magnitude of informal employment. A decline of wage inequality was another feature of this period. Both dynamics were particularly intense in Argentina. The purpose of this study is to evaluate the role played by the process of formalization of the labour market that occurred in Argentina during that period on the reduction of income inequality, while additionally taking into account other factors that might have also contributed to such dynamics of income inequality. The method employed is a decomposition proposed by Firpo, Fortin and Lemieux, which allows extending the Oaxaca-Blinder approach to decompose some distributive statistics of income between a ‘composition effect’ and a ‘returns effect’. The study concludes that the process of increasing labour market formalization had an equalizing effect over the period, a finding that had not been emphasized in previous studies.     

Filling vacancies: an empirical analysis of the cost and benefit of search in the labour market

This paper investigates empirically the factors that affect the cost–benefit ratio of employers’ search. The empirical analysis is based on a small Dutch data set containing individual information on filled vacancies. It is found that firms that use advertisements during recruitment are sensitive to labour market conditions; their search cost per applicant rises (drops) in tight (slack) labour markets because of the diminished ability of advertisements to generate applicants in tight labour markets. Furthermore, it is found that the high search cost incurred by posting identical vacancies is more than compensated for by the benefits from having a larger flow of applicants.     

Criminal behaviour and youth in the labour market: the case of the pernicious minimum wage

This paper empirically tests the relationship between variations in Uniform Crime Reports (UCR) index crime rates for teenagers 16–19 years of age with changes in the real minimum wage adjusted for industry coverage in the United States for the period 1960–1987. The analysis reveals that there exists a positive relationship between changes in the real minimum wage and teenage criminal homicide, forcible rape, and motor vehicle theft crime rates. These findings are consistent with the empirical evidence concerning the impacts of the minimum wage on youth labour market opportunities and also with the theoretical ad empirical evidence regarding the incidence of criminal activity made as an occupational choice decision formulated under risk and uncertainty. However, the results indicate no impact of the minimum wage on the other teenage UCR index crime rates as found by Hashimoto (1987). The evidence also suggests that variations in real criminal justice expenditures per capita reduce teenage propety crime rates over time. Thus, there exists weak empirical evidence suggesting that policymakers should not only concern themselves with the traditionally known impacts of the minimum wage on youth labour market activities but also with the added social costs these impacts have on the incidence of youth criminal behavior. Matters of data exigencies and issues pertaining to the direction of future research are also discussed.     

Policy variables affecting marginal level of low carbon employment：an empirical study based on provincial data of China

Low Carbon Employment is an inevitable choice for the purpose of ＂energy-saving and emission reduction＂ and ＂promoting employment＂. By Multi-variable Linear Backward Regression method, this study presents an empirical analysis of the emplovment impact of policy variables indexes that involves economic pull, industry upgrading, population development, technical inputs and so on. The paper demonstrates that wide range offactors will affect low carbon employment, that industry upgrading will affect how carbon employment remarkably, that to increase years of people education will notably improve low carbon employment level of secondary vocational-technical labor, and that to raise technical inputs will significantly enhance college students＇ low carbon employment.     

Intersectoral wage linkages: the case of Sweden

The purpose of this study is to investigate whether wage-setting in certain sectors of the Swedish economy affects wage-setting in other sectors. The theoretical background is the Scandinavian model of inflation, which states that wage-setting in the sectors exposed to international competition lead wage-setting in the sheltered sectors of the economy. The Johansen maximum likelihood cointegration approach is applied to quarterly data on Swedish sector wages for the period 1980:1–2002:2. Different vector error correction (VEC) models are created, based on assumptions as to which sectors are exposed to international competition and which are not. Granger causality tests are then carried out in the different restricted/unrestricted VEC models to test for sector wage leadership. The Granger causality tests provide strong evidence for the presence of intersectoral wage causality, but no evidence of a wage-leading role for the internationally exposed manufacturing sector.      

Economic liberalization, capital mobility and informal wage in a small open economy: A theoretical analysis

Empirical evidence suggests that the size of the informal sector in the developing countries has increased considerably during the liberalized economic regime. The present paper purports to analyze the consequences of economic reforms on the wellbeing of the informal sector workforce using a three-sector general equilibrium model with two informal sectors. The theoretical analysis finds that different liberalized policies produce diverse effects on the informal wage and that these results are independent of the nature of capital mobility between the informal and the formal sectors. It also shows that labour market reforms, contrary to the common wisdom, are likely to produce favourable effects on the informal wage.     

国际服务外包、就业与工薪差距:基于中国工业行业数据的实证分析

笔者利用投入产出表以及工业行业面板数据对国际服务外包的就业效应及工薪差距效应进行了实证检验,结果显示:工业行业国际服务外包促进了就业,并且扩大了高技能劳动力与低技能劳动力的工薪差距.当考虑行业要素密集度差异时,国际服务外包对资本密集型行业和劳动密集型行业的就业和工薪差距均有正向扩大作用,但在资本密集型行业这种扩展效应更大.     

The relationship between research funding and academic consulting: An empirical investigation in the Spanish context

This paper investigates the relationship between sources of funding for research activity and the engagement of scientists in a specific type of knowledge transfer, that is, academic consulting. We rely on a sample of 2603 individual scientists from five Spanish universities, who have been awarded public funding or have been principal investigators in activities contracted by external agents, over the period 1999–2004. We find that externally contracted research is positively related to the amount of monetary income from consulting contracts, but that international competitive funding has a negative effect. Our results show that this negative effect is positively moderated by the size of contract funding: the effect of international competitive funding becomes positive for moderate and high levels of contract funding. By investigating the relationship between academic consulting and different types of research funding, our paper sheds light on the conditions that favor academic consulting.     

Technological progress and market growth: An empirical study based on the quality-ladder approach

This paper develops an extended version of the quality-adder model by allowing for heterogeneous markets. Based on this model, it presents an empirical analysis of innovation-based growth at the market level using a technometric measurement concept. It can be shown that a growth-promoting effect due to technological progress in a particular single year is observed after between 2 and up to 7 years. This is true not only for highly innovative markets but also for those in which fewer R&D resources are invested.     

产业集聚、要素流动与空间工资差异研究--基于中国28省市面板数据的实证研究

从新经济地理学视角出发,以迪克希特-斯蒂格利茨垄断竞争模型为研究的框架基础,按照传统经济学两区域两部门经济的分析思路构建理论模型进行规范分析,并运用面板数据模型进行实证研究,以中国28个省（市、区）面板数据为数据依据,从而得出了影响中国四大区域之间（东、中、西和东北）实际工资水平存在差异的主要因素及其影响程度。     

The contribution of minimum wage valorization policy to the decline in household income inequality in Brazil: A decomposition approach

There is a vast literature that estimates the effect of the minimum wage on wage inequality in various countries. However, as the minimum wage directly affects nonlabor income of families in some countries (in the Brazilian case via the benefits of the pension system and of certain social programs), this article extends the empirical analysis by studying the effects of the minimum wage on the level of inequality of household income as a whole. To accomplish that we employ a decomposition method that gauges the contribution of the increases in the minimum wage that occurred in recent decades in Brazil through the labor and nonlabor sources of household income. The results show that the minimum wage had a contribution of 64 percent to the observed fall in income inequality between 1995 and 2014 and that pensions were the most relevant channel over this period.     

A technology replacement model with variable market potential — An empirical study of CRT and LCD TV

The rapidly changing economic environment and increasingly fierce competition indicate that companies must innovate in both their products and marketing strategies if they are to continue to flourish. Specifically, the ability to accurately predict the demand for products is crucial when firms decide to allocate their resources, especially in the fast moving high technology industries, where there is very high investment in R&D and production facilities. This study establishes a forecast model for technology replacement based on the diffusion model with population growth used for the variable market potential. The proposed model is then applied to investigate the CRT and LCD TV market.The results suggest that the new model is more accurate than the constant market potential model in fitting and forecasting performance. Consumers who purchase a TV for the first time are likely more attracted to LCD TV rather than CRT TV. As for those individuals who already own a CRT TV, the attraction is not strong enough to encourage them to replace their current CRT TV with a new LCD TV. Moreover, it is noted that the falling price of LCD TV is an essential factor in encouraging purchases.