Wage Inequality and Wage Mobility in Europe

Using data from the European Union Statistics on Income and Living Conditions, this paper investigates wage inequality and wage mobility in Europe. Decomposing inequality into within‐ and between‐group inequality, we analyze to what extent wage inequality and mobility can be explained by observable characteristics. Furthermore, we investigate which individual and household characteristics determine transitions within the wage distribution. We find that overall, mobility reduces wage inequality. While a large part of wage inequality is due to unobservable characteristics, the equalizing effect of mobility mainly occurs within groups. Furthermore, both personal and household characteristics play an important role for wage transitions. Finally, our findings reveal large cross‐country differences across Europe.     

Occupational Mobility and Wage Inequality

In this article we argue that wage inequality and occupational mobility are intimately related. We are motivated by our empirical findings that human capital is occupation specific and that the fraction of workers switching occupations in the U.S. was as high as 16% a year in the early 1970's and had increased to 21% by the mid-1990's. We develop a general equilibrium model with occupation-specific human capital and heterogeneous experience levels within occupations. We find that the model, calibrated to match the level of occupational mobility in the 1970's, accounts quite well for the level of (within-group) wage inequality in that period. Next, we find that the model, calibrated to match the increase in occupational mobility, accounts for over 90% of the increase in wage inequality between the 1970's and the 1990's. The theory is also quantitatively consistent with the level and increase in the short-term variability of earnings.     

Can International Factor Mobility Reduce Wage Inequality in a Dual Economy?*

This paper analyzes the consequences of international factor movements on the skilled–unskilled wage inequality in a dual‐economy set‐up that includes unemployment and three intersectorally mobile factors of production—unskilled labor, skilled labor, and capital. Thus far, theoretical literature on this subject has adopted the full‐employment framework and hence ignored the problem of unemployment. The analysis in this paper reveals that the results crucially depend on the difference in the intersectoral factor intensities between skilled labor and capital. In particular, it demonstrates the existence of a possibility of deterioration in wage inequality following foreign unskilled‐labor inflow.     

不平等、贫困与全球化

反全球化人士认为,世界上的不平等和贫困状况几十年来在不断加剧,一些国际组织有时也持这种观点。然而最新研究显示,从1950年代到1990年代末这段时期,情况并没有发生变化,或者还稍有好转。一项针对近两个世纪的长期研究可以使我们更好地理解不平等与贫困的演变,从而更准确地界定二者与全球化之间的关系。     

Trade, Technology and UK Wage Inequality

This paper examines the impact of international trade and technical change on changes in the UK skill premium. We first measure trade as changes in product prices and technical change as TFP growth. Then we relate price and TFP changes to a set of underlying forces. Among our results are (a) changes in prices, not TFP, were the major force behind the rise in inequality in the 1980s; (b) changes in OECD prices and UK tariffs significantly raised 1980s skill premia through their effects on prices, and that industry concentration significantly raised 1980s skill premia through its effect on TFP.     

外包、创新与工资不平等

本文构建了一个纳入发达国家创新活动的外包模型,来研究发达国家对发展中国家的外包转移,对发达国家和发展中国家之间的工资不平等以及作为发包方的发达国家企业创新活动的影响.我们发现,外包转移活动中不同因素对发达国家和发展中国家之间的工资不平等有着较为复杂的影响效应;更为重要是,发达国家对发展中国家的外包转移程度越大,越能激励作为发包方的发达国家企业的创新活动.进一步,考虑到作为外包转移接受方的发展中国家之间普遍存在的模仿行为特征,在外包模型中引入了发展中国家企业之间的模仿系数.模型结果表明,发展中国家代工企业之间的模仿程度越大,则会缩小发达国家和发展中国家之间的工资不平等;而且,作为代工方的发展中国家企业之间的模仿程度越大,越能激励作为发包方的发达国家企业的创新活动,越能激励发达国家对发展中国家的外包转移.本文的结论对于重新思考与理解外包活动对作为发包方的发达国家和作为接包方的发展中国家所具有的复杂影响效应,无疑具有非常直接的现实政策含义.     

Emigration,Finite Changes and Wage Inequality

This article shows that large outmigration of labor leads to finite changes in the structure of production at source. We argue that sectors may vanish as they cannot pay higher wages consequent to emigration. We also inquire whether emigration of one type of labor hurts the other non‐emigrating type in this setup. Various situations when real incomes of the emigrating and the non‐emigrating types do not move together are demonstrated. This generalizes some of the existing results in the literature. In particular, emigration can lead to a drastic change in the degree of inequality depending on which of the sectors survive in the postemigration regime.     

Technology Transfer,Welfare, and Wage Inequality

We use a linear two‐country, two‐factor, two‐product, two‐different technologies (2×2×2×2) model to study technology transfer and its effects on each country's welfare and factor prices. We demonstrate that technology transfer could benefit both the recipient and the transferring countries. For the recipient country, technology transfer increases the price of the factor that is more intensively used and decreases the price of the other factor. Our results provide an alternative explanation of a trend observed in the past half century: a rise in real wage inequality between relatively skilled workers and less‐skilled workers because of technological progress in numerous countries.     

贸易、技术进步和工薪差距——关于克鲁格曼和利默之争的探讨

20世纪80年代以来,经济全球化进程日益加快。除了全面快速地提高全球经济的发展外,经济全球化的负面效应也逐渐凸显出来。在美国,从20世纪70年代开始,90%的工人实际工资上升了大约15%,而其余10%的工人工资下降了大约25%^[1]。     

全球化、不平等与制度改革——评阿马蒂亚·森的全球化观点

阿马蒂亚·森认为,全球化的核心问题不仅包括利益分享的不平等,而且包括安全的不平等。他把全球化问题与伦理道德以及制度分析结合在一起,强调非市场制度以及国际机构在解决不平等时所起的作用,得出不平等不可能完全依靠经济增长来解决而要依靠政策的、制度的、机构的改革来实现的结论。森的这些观点对我国应对全球化的冲击不无裨益。     

International Outsourcing, Technological Change, and Wage Inequality

This paper analyzes the impact of international outsourcing on UK wage inequality during the 1990s by applying the mandated wage approach proposed by Feenstra and Hanson (1999 ). The methodology is extended in order to obtain additional insight into the relative importance of the factor and sector bias of international outsourcing and technological change. The results indicate that technological change is the predominant force behind the increase in wage inequality, but international outsourcing also contributed significantly. In explaining the increase in wage inequality the factor bias of technological change was slightly larger than its sector bias, while for international outsourcing the sector bias was much more important. The relative importance of the two effects hinges crucially on the estimated rate of productivity passthrough.     

Product Market Integration,Rents and Wage Inequality

Globalization in the form of product market integration affects labor markets and produces winners and losers. While there are aggregate gains, it is in general ambiguous how inequality is affected. We explore this issue in a Ricardian model and show that it depends on the balance between “protection” and “specialization” rents. In particular, wage inequality among similar workers (residual wage inequality) may be U ‐shaped, at first decreasing and then increasing in the process of product market integration. Consequently, there may be gains in both the efficiency and the equity dimension until integration reaches a certain level at which a trade‐off arises.     

Global Innovation Races,Offshoring and Wage Inequality

In the 1970s and 1980s the US position as the global technological leader was increasingly challenged by Japan and Europe. In those years the US skill premium and residual wage inequality increased substantially. This paper presents a two‐region, quality‐ladder growth model where the lagging economy progressively catches up with the leader. As the innovation gap closes, the advanced country experiences fiercer foreign technological competition that forces its firms to innovate more. Faster technical change increases the skill premium and residual inequality. Offshoring production and innovation plays a key role in shaping the link between international competition and inequality.     

Foreign Competition and Wage Inequality

The author argues that increased foreign competition can affect technical choice and skill differentials even when actual imports do not rise significantly. A model is presented of general oligopolistic equilibrium (GOLE) in which a reduction in import barriers (whether technological or policy–imposed) encourages more strategic investment by incumbent firms. The predictions accord with many of the stylized facts: higher skill premia; higher ratios of skilled to unskilled workers employed in all sectors and throughout the economy; little change in import volumes or prices; and rapid technological progress with rather little change in total factor productivity.     

Income Mobility, Inequality and Social Welfare

It is often argued that an observation of rising annual income inequality need not have negative normative implications. The argument is that if there has been a sufficiently large simultaneous increase in mobility, the inequality of income measured over a longer time period can be lower despite the rise in annual inequality. In this paper, it is shown by example that if normative implications are drawn from a standard social welfare function, the set of circumstances put forward in the above argument are not sufficient to guarantee that social welfare will improve. The reason is that even though rising mobility does reduce longer term inequality, it also increases the variability of income profiles over time and the latter has a detrimental social welfare effect. Hence, there are two types of mobility: one which reduces inequality (regression to the mean), but another that increases inequality (relative movements uncorrelated with incomes). Further, if individuals' aversion to income variabiltiy is sufficiently larger than the social welfare judge's aversion to inequality, then an increase in mobility, no matter how large, cannot offset the negative normative effect of rising annual inequality.     

技能型技术进步、南北贸易与工资不平衡

本文试图将技能型技术进步与产业内贸易置于一个框架中对工资不平衡现象进行理论解释。自由贸易通过促使发达国家产品质量阶梯提升型的技术进步而加剧了该国的工资不平衡程度;同时,自由贸易通过促使发展中国家产品种类数增加型的技术进步而加剧了该国的工资不平衡程度。南北贸易在拉大相对工资差距的同时促进了技能型技术进步。     

Local Area Inequality and Worker Well-Being

This paper uses General Social Survey data linked to Census data to investigate the effect of local area income and income inequality on worker well-being. Others have found a robust negative correlation between reference group income and self-reported well-being. However, in many cases the reference group is defined as a large geographic area. This paper adds to the literature in two ways. First, it considers multiple nested geographic reference groups with US data. Second, it explicitly considers income inequality in addition to the level of income. It is found that both income and income inequality are positively associated with well-being at the census tract level, but negatively associated at the county level. Further, the effect of inequality on well-being decreases as income increases at the census tract and county level, while it increases at the state level.     

General Purpose Technology and Wage Inequality

The recent changes in the US wage structure are often linked to the new wave of capital-embodied information technologies. The existing literature has emphasized either the accelerated pace or the skill-bias of embodied technical progress as the driving force behind the rise in wage inequality. A key, neglected, aspect is the general purpose nature of the new information technologies. This paper formalizes the idea of generality of technology in two ways, one related to human capital (skill transferability) and one to physical capital (vintage compatibility) and studies the impact of an increase in these two dimensions of technological generality on equilibrium wage inequality.     

Gender Wage Inequality and Economic Recession

The Paper develops a two sector full employment general-equilibrium model for a small open developing economy, with both male and female labor. One sector produces low-skilled export commodity while other sector produces high skilled import competing commodity. The effects of world-wide economic recession on gender wage inequality have been examined in such an economy. The analysis concludes that low demand for high skilled commodity and/or low volume of foreign direct investment due to recession may aggravate the average gender wage inequality in the economy.