The Structure Of Wages

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.

During the past two decades, wages of skilled workers in the United States rose while those of unskilled workers fell; less-educated young men in particular have suffered unprecedented losses in real earnings. These twelve original essays explore whether this trend is unique to the United States or is part of a general growth in inequality in advanced countries. Focusing on labor market institutions and the supply and demand forces that affect wages, the papers compare patterns of earnings inequality and pay differentials in the United States, Australia, Korea, Japan, Western Europe, and the changing economies of Eastern Europe. Cross-country studies examine issues such as managerial compensation, gender differences in earnings, and the relationship of pay to regional unemployment. From this rich store of data, the contributors attribute changes in relative wages and unemployment among countries both to differences in labor market institutions and training and education systems, and to long-term shifts in supply and demand for skilled workers. These shifts are driven in part by skill-biased technological change and the growing internationalization of advanced industrial economies.

Economists and others concerned with the theory of wages or with the functioning of Soviet economy will find this investigation of the inequality of wages in the Soviet Union an illuminating study. Based on data used by Soviet administrators in making their decisions, it establishes for the first time in a scientifically acceptable manner the principles according to which differences in earnings in the U.S.S.R. are determined. It is also the first study to present comparable data on the inequality prevailing under capitalism.

The returns to talent or performance have grown over time in developed countries. Is talent concentrated in a few firms or are firms virtual microcosms of the economy, each having close to identical distributions of talent? The data show that talent is not concentrated in a few companies, but is widely dispersed across companies. Wage dispersion within firms is nearly as high as the wage dispersion overall. The standard deviation of wages within the firm is about 80% of the standard deviation across all workers in the economy. Firms are more similar than they are dissimilar, but they are not identical: the firm mean wage displays considerable dispersion across the population of firms. There is evidence that talent is becoming more concentrated over time within some firms relative to others. In four countries that estimated wage regressions with firm fixed effects, the firm fixed effects are contributing more to the R-squared of the wage regression over time. Law firms have more lawyers than janitors. Janitorial firms have more janitors than lawyers and the differences between firms have become more pronounced. Still, the variance of wages within the average firms remains high.

For some time, it has been debated whether a lack of wage flexibility is at the roots of the high and persistent unemployment in West Germany. In the presence of a skill bias in labor demand, which increases the relative de mand for more highly skilled labor over time, there only seems to exist the choice between higher wage inequality or higher unemployment rates. This study scrutinizes whether and in what way this line of thought is consis tent with empirical findings for West Germany. The analysis ranges from extensive descriptive evidence on wage trends to the estimation of a struc tural model of wage bargaining. As the most important database, I use the IAB-Beschiiftigtenstichprobe from 1975 to 1990. This study was accepted as a Habilitation thesis by the Department of Economics and Statistics of the University of Konstanz in October 1998. The only major change relates to appendix B on the block bootstrap procedure now summarizing the main aspects of the method. I am very grateful to my advisor Prof. Dr. Wolfgang Franz for his support, encouragement, and inspiration. From 1993 to 1997, he ran the Center for International Labor Economics at the University of Konstanz in such a way that it provided a fruitful environment for empirical research in labor economics. I am also indebted to Prof. Dr. Winfried Pohlmeier and to Prof. Dr. Gerd Ronning for undertaking the task to evaluate my Habilitation thesis.

Even though firms play a key role in shaping wages, wage inequality and the gender wage gap, firms have so far only featured to a limited extent in the policy debates around these issues. The evidence in this volume shows that around one third of overall wage inequality can be explained by gaps in pay between firms rather than differences in the level and returns to workers’ skills.