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While there has been intense debate in the empirical literature over the evolution of the college wage premium in the United States, its evolution in Europe has received little attention. This paper investigates the causes of the evolution of the college wage premium in 12 European countries from 1994 to 2009, assessing the relevance of the supply factor as a determinant of the college wage premium. I use cross-country variation in relative supply, demand, and labour market institutions to examine their effects on the trend in wage inequality. I address possible concerns of endogeneity of the relative supply using an IV strategy exploiting the differential legislations of university autonomy and their variations over time. Results show that the strong increase in the relative supply that European countries have experienced has decreased the college wage premium. The most relevant institution is the minimun wage, which significantly decreases college wage premium.

This chapter uses a college-by-graduate degree fixed effects estimator to evaluate the returns to 19 different graduate degrees for men and women. We find substantial variation across degrees, and evidence that OLS overestimates the returns to degrees with the highest average earnings and underestimates the returns to degrees with the lowest average earnings. Second, we decompose the impacts on earnings into effects on wage rates and effects on hours. For most degrees, the earnings gains come from increased wage rates, though hours play an important role in some degrees, such as medicine, especially for women. Third, we estimate the net present value and internal rate of return for each degree, which account for the time and monetary costs of degrees. Finally, we provide descriptive evidence that satisfaction gains are large for some degrees with smaller economic returns, such as education and humanities degrees, especially for men.

A leading explanation for the growth of wage inequality is that greater use of information technology increased the demand for human capital. This paper identifies four different explanations for the relationships between computers, skills, and wages: computer-specific human capital, greater general human capital among computer users, greater general human capital for both users and nonusers due to contextual effects, and skill-biased changes in the job composition of the workforce. The paper tests the first three explanations and finds little support for them once pre-computer and other job characteristics are adequately controlled. This conclusion receives further support from a comparison of the timing of inequality growth and computer diffusion and from analyses of the contribution of computer use to overall inequality growth using DiNardo, Fortin, and Lemieux's (1996) reweighting standardization technique.

This study investigates the formal/informal employment earnings gap in Turkey. We focus on the earnings differentials that can be explained by observable characteristics and unobservable time-invariant individual heterogeneity. We first, estimate the standard Mincer earnings equations using ordinary least squares (OLS), controlling for individual, household, and job characteristics. Next we use, panel data and the quantile regression (QR) techniques in order to account for unobserved factors which might affect the earnings and the intrinsic heterogeneity within formal and informal sectors. OLS results confirm the existence of an informal sector penalty almost half of which is explained by observable variables. We find that formal-salaried workers are paid significantly higher than their informal counterparts and of the self-employed confirming the heterogeneity within the informal employment. QR results show that pay differentials are not uniform along the earnings distribution. In contrast to the mainstream literature which views informal self-employment as the upper-tier and wage-employment as the lower-tier, we find that self-employment corresponds to the lower-tier in the Turkish labor market. Finally, fixed effects estimation indicates that unobserved individual characteristics combined with controls for observable characteristics explain the pay differentials between formal and informal employment entirely in the total and the female sample. However, informal sector penalty persists in the male sample.

Estimates are developed of the major macroeconomic aggregates – wages, land rents, interest rates, prices, factor shares, sectoral shares in output and employment, and real wages – for England by decade between 1209 and 2008. The efficiency of the economy in the years 1209–2008 is also estimated. One finding is that the growth of real wages in the Industrial Revolution era and beyond was faster than the growth of output per person. Indeed until recently the greatest recipient of modern growth in England has been unskilled workers. The data also create a number of puzzles, the principal one being the very high levels of output and efficiency estimated for England in the medieval era. These data are thus inconsistent with the general notion that there was a period of Smithian growth between 1300 and 1800 which preceded the Industrial Revolution, as expressed in such recent works as De Vries (2008).

Wages have been spreading out across workers over time – or in other words, the 90th/50th wage ratio has risen over time. A key question is, has the productivity distribution also spread out across worker skill levels over time? Using our calculations of productivity by skill level for the United States, we show that the distributions of both wages and productivity have spread out over time, as the right tail lengthens for both. We add Organization for Economic Co-Operation and Development (OECD) countries, showing that the wage–productivity correlation exists, such that gains in aggregate productivity, or GDP per person, have resulted in higher wages for workers at the top and bottom of the wage distribution. However, across countries, those workers in the upper-income ranks have seen their wages rise the most over time. The most likely international factor explaining these wage increases is the skill-biased technological change of the digital revolution. The new artificial intelligence (AI) revolution that has just begun seems to be having similar skill-biased effects on wages. But this current AI, called “supervised learning,” is relatively similar to past technological change. The AI of the distant future will be “unsupervised learning,” and it could eventually have an effect on the jobs of the most highly skilled.

This chapter examines whether changes in return to education affect workers’ mobility between jobs. Employee panel data are used to study staff movement from the public sector to the private sector or vice versa from 1995 to 2005. It is found that in line with the situation in other advanced economies, the wage structure in the public sector in Israel is more compressed than that in the private sector, for employees with similar characteristics and in general, and that the difference widened during the period reviewed. Hence, the findings support the contention that the public sector compensates employees less for their skills than does the private sector. In addition, it is found that during that period the return to education increased in the private sector by about 1 percentage point more than in the public sector. In an analysis of those who switched from one sector to the other, our findings imply that if the return to education changed at the same rate in both sectors, the probability of highly educated workers moving from the public sector to the private sector would be 5 percent lower, and the probability of highly educated workers moving from the private sector to the public sector would be 2 percent higher.

Drawing upon the 5% Public-Use Microdata Sample (PUMS) from the 1990 and 2000 Censuses (with comparisons to the 1980 Census through the work of Uhlenberg & Cooney, 1990), this paper examines the changing characteristics of the U.S. young physician labor force (aged 30–49). Currently, over 45% of medical degrees are earned by women, but gendered work-family patterns persist. Measures examined include income, hourly wages, mean work hours, part-time and overtime work, practice setting, marital status, and children. For a sub-sample of physicians married to physicians, I also examine income and work hour differentials. Close attention is paid to whether a marriage premium and/or a motherhood penalty in wages exists and persists over time. Implications of the documented workforce diversity are discussed for organizations within which physicians are employed.

Purpose – Ascertaining the extent to which the generalized decline in union density, as well as the erosion in centralized bargaining structures and developments in other labor institutions, have contributed to rising within-country inequality.

Methodology – Econometric analysis of a newly developed dataset combining information on industrial relations and labor law, various dimensions of globalization, and controls for demand and supply of skilled labor for 51 Advanced, Central and Eastern European, Latin American, and Asian countries from the late 1980s to the early 2000s, followed by an analysis of 16 advanced countries over a longer time frame (from the late 1970s to the early 2000s).

Findings – In contrast to previous research, which finds labor institutions to be important determinants of more egalitarian wage or income distributions, the chapter finds that trade unionism and collective bargaining are no longer significantly associated with within-country inequality, except in the Central and Eastern European countries. These findings are interpreted as the result of trade unionism operating under more stringent structural constraints than in the past, partly as a result of globalization trends. In addition, despite much talk about welfare state crisis, welfare states, historically the result of labor's power and mobilization capacity, still play an important redistributive role, at least in advanced countries.

Practical implications – Union attempts at equalizing incomes by compressing market earnings seem ineffective and impractical in the current day and age. Unions should seek to increase the workers’ skill levels and promote an egalitarian transformation of the workplace. This type of “supply-side” egalitarianism is not a new strategy for unions, but is very much embedded in the unions’ DNA.