We study a longitudinal sample of over one million French workers and over 500,000 employing firms. Real total annual compensation per worker is decomposed into components related to observable characteristics, worker heterogeneity, firm heterogeneity and residual variation. Except for the residual, all components may be correlated in an arbitrary fashion. At the level of the individual, we find that person-effects, especially those not related to observables like education, are the most important source of wage variation in France. Firm-effects, while important, are not as important as person-effects. At the level of firms, we find that enterprises that hire high-wage workers are more productive but not more profitable. They are also more capital and high-skilled employee intensive. Enterprises that pay higher wages, controlling for person-effects, are more productive and more profitable. They are also more capital intensive but are not more high-skilled labor intensive. We also find that person-effects explain 92% of inter-industry wage differentials.

We develop a new approach to measuring the correlation between the types of matched workers and firms. Our approach accurately measures the correlation in data sets with many workers and firms, but a small number of independent observations for each. Using administrative data from Austria, we find that the correlation between worker and firm types lies between 0.4 and 0.6. We use artificial data sets with correlated worker and firm types to show that our estimator is accurate. In contrast, the Abowd, Kramarz and Margolis (1999) fixed effects estimator suggests no correlation between types in our data set. We show both theoretically and empirically that this reflects an incidental parameter problem.

The distribution of income, the rate of pay raises, and the mobility of employees is crucial to understanding labor economics. Although research abounds on the distribution of wages across individuals in the economy, wage differentials within firms remain a mystery to economists. The first effort to examine linked employer-employee data across countries, The Structure of Wages:An International Comparison analyzes labor trends and their institutional background in the United States and eight European countries. A distinguished team of contributors reveal how a rising wage variance rewards star employees at a higher rate than ever before, how talent becomes concentrated in a few firms over time, and how outside market conditions affect wages in the twenty-first century. From a comparative perspective that examines wage and income differences within and between countries such as Denmark, Italy, and the Netherlands, this volume will be required reading for economists and those working in industrial organization.

For over a decade, policy makers have emphasized work as the best means to escape poverty. However, millions of working Americans still fall below the poverty line. Though many of these "working poor" remain mired in poverty for long periods, some eventually climb their way up the earnings ladder. These success stories show that the low wage labor market is not necessarily a dead end, but little research to date has focused on how these upwardly mobile workers get ahead. In Moving Up or Moving On, Fredrik Andersson, Harry Holzer, and Julia Lane examine the characteristics of both employees and employers that lead to positive outcomes for workers. Using new Census data, Moving Up or Moving On follows a group of low earners over a nine-year period to analyze the behaviors and characteristics of individuals and employers that lead workers to successful career outcomes. The authors find that, in general, workers who "moved on" to different employers fared better than those who tried to "move up" within the same firm. While changing employers meant losing valuable job tenure and spending more time out of work than those who stayed put, workers who left their jobs in search of better opportunity elsewhere ended up with significantly higher earnings in the long term—in large part because they were able to find employers that paid better wages and offered more possibilities for promotion. Yet moving on to better jobs is difficult for many of the working poor because they lack access to good-paying firms. Andersson, Holzer, and Lane demonstrate that low-wage workers tend to live far from good paying employers, making an improved transportation infrastructure a vital component of any public policy to improve job prospects for the poor. Labor market intermediaries can also help improve access to good employers. The authors find that one such intermediary, temporary help agencies, improved long-term outcomes for low-wage earners by giving them exposure to better-paying firms and therefore the opportunity to obtain better jobs. Taken together, these findings suggest that public policy can best serve the working poor by expanding their access to good employers, assisting them with job training and placement, and helping them to prepare for careers that combine both mobility and job retention strategies. Moving Up or Moving On offers a compelling argument about how low-wage workers can achieve upward mobility, and how public policy can facilitate the process. Clearly written and based on an abundance of new data, this book provides concrete, practical answers to the large questions surrounding the low-wage labor market.