Career, experience and returns to human capital: is the dual labour market hypothesis relevant for the UK?

This paper investigates the relationship between career status, labour market experience and returns to human capital accumulation in the context of a two-tier, career and non-career labour market. Using micro data from the British Household Panel Survey (BHPS), this study detects wage and employment mechanisms that differ between these two tiers of workers. The paper finds no support for the hypothesis of strict duality, by which the returns to education are expected to differ across labour market segments, with the returns in career employment being high and positive and the returns in the non-career sector being close to zero. The paper, however, finds support for significant returns to current tenure only in the career sector and also for the scarring hypothesis, according to which part-time employment and unemployment experience have a negative effect on participation and earnings in the career sector. Finally, there is evidence that only non-career earnings are significantly affected by local demand conditions, in contrast to earnings in the career sector. Career status is modelled as an endogenous variable subject to an initial job choice.     

Two Tales on the Returns to Education: The Impact of Trade on Wages

This paper uses micro data from the Current Population Survey combined with data from the US International Trade Commission and Bureau of Economic Analysis to evaluate the impacts of international trade (import penetration and export intensiveness) on wages with a special focus on the returns to education. Consistent with the literature, our empirical analysis provides evidence that the wage rates of similarly skilled workers differ across net‐exporting, net‐importing, and nontradable industries. Our results add to the literature by showing that the wage gap usually found across importing and exporting industries vanishes for highly skilled workers (workers with college degree and beyond) when we control for the cross‐effect between international trade and education, but the wage gap due to international trade still persists for low‐skilled workers. This finding supports the view that education serves as an equalizer and counterbalances the adverse impact from import penetration on wages of highly skilled workers.     

THE SKILL COMPOSITION OF U.S. CITIES*

This article explores why the fraction of highly educated workers varies across U.S. metropolitan areas. It documents a set of facts that pose challenges for a number of theories. Notably, (i) cities are characterized by industry neutral differences in skilled labor productivity and (ii) the size of the business services sector is strongly correlated with cities' skill compositions. Motivated by these observations, I propose an input sharing model, in which nontraded business services complement skilled labor. I show that the model accounts for all of the empirical regularities documented in the article.     

Consequences of a tax on the brain drain for unemployment and income inequality in less developed countries

Welfare implications of an income tax paid by emigrant skilled workers are analyzed in a model which assumes international capital mobility and allows for unemployed labor in the modern sector of a developing country. The tax discourages overinvestment in education and also contributes to the welfare of those remaining through the direct revenue effect. However, expected earnings of unskilled workers decline as a result of the tax, while those of non-migrant skilled workers rise. The tax may thus exacerbate domestic income inequality. In addition, modern sector employment, output, and capital stock may fall.     

Nutritional efficiency wages and child labor

This paper formally analyzes the incidence of child labor by employing an overlapping-generations general-equilibrium model of a small open economy. An individual's ability determines whether or not he/she becomes a skilled worker. The supply side of the economy is composed of two sectors: a modern sector that produces a homogeneous good using skilled labor and physical capital; and an agrarian sector that produces a traditional good using unskilled adult labor, child labor, and land. An increase in foreign direct investment and improvements in education reduce the incidence of child labor. Emigration of skilled (unskilled) workers reduces (raises) the supply of child labor, while trade sanctions reduce the demand for child labor. Child wage subsidies have an ambiguous effect on the incidence of child labor while education subsidies are effective in reducing the incidence of child labor. Simulation analysis is used to investigate the welfare effects of the aforementioned policies.     

Education expansion and decline in tertiary premium in Brazil: 1995-2013

Using Brazil National Household Survey 1995–2013 data, this paper examines how the education expansion in Brazil impacted the tertiary premium through the interaction of relative supply and relative demand. The identification of the impact of relative demand on education premium provides an empirical testing of the Heckscher-Ohlin model in the context of Brazil. The results suggest that the change in relative supply had converged the education premium thus converged the wage income distribution. The results also show that there was no decrease in relative demand for skilled workers in Brazil in the past two decades, which is inconsistent with what the Heckscher-Ohlin model predicts.     

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.     

Education and earnings in urban West Africa

Using a series of comparable labor force surveys in urban West Africa, we estimate the private returns to education among representative samples of workers in seven economic capitals (Abidjan, Bamako, Cotonou, Dakar, Lome, Niamey and Ouagadougou). The data allow us to provide a unique cross-country comparison using rigorously the same variables and methodology for each country. We tackle the issues of endogenous sector allocation (public, formal private and informal sectors) and endogeneity of the education variable in the earnings functions. We find that the returns to schooling are most often enhanced once an endogenous education variable is accounted for. This effect holds particularly true in the informal sector. In most West African cities of our sample, the public sector gives more value to education, followed by the formal private sector and then the informal sector. We also shed light on convex returns to education in all the cities and sectors, including in informal activity. More generally, a major contribution of this paper is to provide evidence of significant effects of education on individual earnings in the informal sectors of the West African cities, even at high levels of schooling.     

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.     

The returns to education and wage penalty from overeducation: New evidence from Vietnam

This study intends to estimate the rate of returns to education in Vietnam, the distributive effects of education on wages, and the wage penalty from the incidence of overeducation in the Vietnamese labor market during 2004–2016. This study employs a pseudo-panel approach to address omitted variables bias and the unconditional quantile regression to identify the heterogeneity of returns to education across the income distribution. Our main finding indicates that the estimated rate of returns to education in Vietnam is approximately 6.5%, showing a downward bias from previous estimates. The returns vary across wage distributions, where a lower rate of return is observed in lower quantiles and a higher rate among those individuals at the higher quantiles. The returns to education have declined since 2008, confirming the oversupply of highly educated workers in the Vietnamese labor market with an estimated wage penalty of 17%. Government assistance measures are needed to reduce the overeducation and the wage penalty issues in the Vietnamese labor market.     

Tail dependence between gold and sectorial stocks in China: perspectives for portfolio diversification

This article analyzes the relationship between gold quoted on the Shanghai Gold Exchange and Chinese sectorial stocks from 2009 to 2015. Using different copulas, our results show that there is weak but significant tail dependence between gold and Chinese sectorial stock returns. This means that the dependence between extreme movements of the two assets is not pronounced and confirms the role of gold as a safe haven asset. Based on analyzing the efficient frontier, CCC-GARCH optimal weights, hedge ratios and hedging effectiveness, we further show that adding gold into Chinese stock portfolios can help to reduce their risk. Gold appears to be the most efficient diversifier for stocks of the materials sector and the less efficient for the utilities sector. As a robustness check, we also compare gold to oil and indicate that gold is more efficient than oil in the diversification of Chinese stock portfolios.

     

Wages, Experience and Seniority

In this paper we study the sources of wage growth. We identify the contribution to such growth of general, sector specific and firm specific human capital. Our results are interpretable within the context of a model where the returns to human capital may be heterogeneous and where firms may offer different combinations of entry level wages and firm specific human capital development. We allow for the possibility that wages are match specific and that workers move jobs as a result of identifying a better match. To estimate the average returns to experience, sector tenure and firm specific tenure within this context, we develop an identification strategy which relies on the use of firm closures. Our data source is a new and unique administrative data-set for Germany that includes complete work histories as well as individual characteristics. We find positive returns to experience and firm tenure for skilled workers. The returns to experience for unskilled workers are small and insignificant after 2 years of experience. Their returns to sector tenure are also zero. However, their returns to firm tenure are substantial.     

Spillover effects of the 2008 financial crisis on NIE stock markets

This article estimates dynamic conditional correlations of stock returns across countries by using DCC–GARCH model and analyse spillover effects of the 2008 financial crisis on the NIE’s stock markets. The results show that there is no regime shift in mean equation of the correlation coefficient during the financial crisis. It may imply there are no mean spillover effects of the US financial crisis on the NIE’s stock markets. However, there are volatility spillover effects of the financial crisis sparked in 2008 from the US to the NIE’s markets.     

The impact of minimum wages on employment of low‐wage workers

This study provides empirical evidence on the impact of a minimum wage increase on employment of workers in the formal sector who have wages below the minimum level in Vietnam. Using the difference‐in‐differences with propensity score matching and the Vietnam Household Living Standard Surveys of 2004 and 2006, the article finds that the minimum wage increase in 2005 reduced the proportion of workers having a formal sector job among low‐wage workers. Most workers who lost formal sector jobs became self‐employed.     

The wage effects of training in Portugal: differences across skill groups,genders, sectors and training types

This article investigates the determinants and wage effects of training in Portugal. In a first stage, we show that there are considerable differences in training participation across groups of workers, with elder and low educated individuals participating substantially less. In a second stage, we show that training has a positive and significant impact on wages. The estimated wage return is about 30% for men and 38% for women. Discriminating between levels of education and working experience and the public and private sector reveals important differences across categories of workers. We find that women, low educated workers and workers with long working experience earn larger returns from training. The average effect of training is similar in the private sector and the public sector. However, differences across experience groups are larger in the private sector, while differences across education groups are larger in the public sector. We use three alternative classifications of training activities and find that training in the firm, training aimed to improve skills needed at the current job and training with duration less than a year are associated to larger wage gains.     

Diversification across ASEAN-wide sectoral and national equity returns

This paper examines the effects of local and global shocks on the sector indices and national returns of the Association of Southeast Asian Nations (ASEAN) by using the univariate AR-GARCH model. We find that regional and global shocks have different influences on the ASEAN-wide sector and national equity indices. There is evidence that the ASEAN-wide sectoral returns are mostly driven by local shocks, except for the insurance and technology sectors. The volatility of Singapore's and Vietnam's national returns mostly results from their own shocks rather than local and global shocks. Applying the trend spillover model, this paper also shows that the effects of regional and global shocks on return volatility have been decreasing for almost all ASEAN-wide sectors' equity indices, while the trend for the volatility spillover effects of those shocks are positive and significant for the production and industries group sectors, as well as the food and beverage sector. Comparing the variance ratios of ASEAN sectoral and national returns, it is evident that the percentage of national equity returns belonging to their own shocks is higher than that of sectoral returns, indicating that investors might be better off diversifying their assets across countries rather than sectors in ASEAN area. This finding is consistent with the results of the mean–variance frontiers, as the portfolio composed purely of ASEAN national returns has a stronger efficiency frontier than a portfolio of all ASEAN-wide sector equity returns. By using the spanning and intersection tests, the paper also indicates that adding ASEAN national equity returns might improve the efficiency frontiers of investors' holding portfolios.     

交通基础设施的溢出效应及其产业差异——基于空间计量的比较分析

文章利用1998-2008年中国省级面板数据,在模型中加入不同经济意义空间权重矩阵的基础上,分析了我国交通基础设施的空间溢出效应。研究发现,我国交通基础设施的空间溢出效应更多地通过经济联系发生作用。交通基础设施对第二产业的空间溢出大于对第三产业的空间溢出,基于产业结构的空间溢出大于基于市场规模的空间溢出。此外,我国铁路溢出效应存在边际报酬递增的特征,而公路溢出效应则呈现边际报酬递减的现象。     

Intellectual property rights and diaspora knowledge networks: Can patent protection generate brain gain from skilled migration?

This paper studies the mechanism through which intellectual property rights (IPR) protection can influence the impact of skilled migration on innovation activities in developing countries. We argue that knowledge acquired by emigrants abroad can flow back to their country of origin through diaspora networks. IPR protection in the sending country facilitates this channel by increasing returns to skills and encouraging workers to move into the innovation sector. An expansion of the innovation sector allows diaspora knowledge to be absorbed by a larger range of workers. Strong IPR enforcement therefore makes it more likely for brain drain to be transformed into brain gain.     

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.     

Wage differentials and state‐private sector employment choice in Yugoslavia*

In this study we use the newly available Yugoslavian Labor Force Survey data to investigate wage differentials and employment decisions in the state and private sectors in Yugoslavia. For the analysis we use three empirical models that rely on different statistical assumptions. We extend the standard switching regression model to allow non‐normality in the joint distribution of the error terms. After correcting for the sector selection bias and controlling for workers’ characteristics we find a private sector wage advantage. The wage premium is largest for workers with low education levels and declining for workers with higher educational levels. Given the regulatory and tax policies that pushed the private sector into the informal sphere of the economy during the period covered by our data, we argue that the state/private wage gap is likely to grow in the future. This will make it increasingly difficult for the state sector to attract and retain highly skilled employees.