Torbjørn Hægeland

Do higher wages reflect higher productivity? : education, gender and experience premiums in a matched plant-worker data set

Do wage differences between workers with high and low levels of education, between males and females and between workers with different levels of experience reflect differences in productivity? We address this set of questions on the basis of a data set with variables for individual workers matched with a comprehensive data set for manufacturing plants in Norway for the period 1986-93. The results suggest that workers with higher education tend to be more productive, roughly in accordance to their wage premium. Female workers are cet. par. found to be less productive than male workers, and this is reflected in their wages. Experienced workers are on average found to be more productive. For workers with 8 to 15 years of experience, the productivity premium exceeds the wage premium, while the opposite is the case for workers with more than 15 years of experience.

Declining Returns to Education in NOrway? Comparing Estimates Across Cohorts, Sectors and Over Time

We examine the role of the Norwegian education system in explaining the moderate and stable earnings dispersion in Norway. Estimating earnings equations for 1980 and 1990, we find that returns to education have been remarkably stable in Norway, also when we compare returns to education across different sectors of the economy. Our analysis controls for self-selection into education by using an instrumental variable technique. We estimate separate education earnings profiles for different cohorts to identify the effect on wage premiums of the large changes that have taken place in the Norwegian education system. The substantially higher level of educational attainment for more recent cohorts does not, cet.par., seem to have negative effect on educational wage premiums for these younger cohorts.

Who Pays for Performance

Using Norwegian establishment surveys from 1997 and 2003, we show that performance-related pay is more prevalent in firms where workers of the main occupation have a high degree of autonomy in how to organize their work. This observation supports an interpretation of incentive pay as motivated by agency problems. Performance-related pay is also more widespread in large firms. Traditionally, wage setting in the Norwegian labor market has been dominated by negotiations between trade unions and employer associations at the central and local levels, with a fixed hourly wage as a predominant element of the wage scheme. Our results show that performance-related pay is less common in highly unionized firms and in firms where wages are determined through centralized bargaining. Nevertheless, the evidence presented in this paper reveals that performance pay is on the rise in Norway, even after accounting for changes in industry structure, bargaining regime, and union density. Finally, we find that the incidence of performance-related pay relates positively to product-market competition and foreign ownership.

Performance Pay, Union Bargaining and Within‐Firm Wage Inequality*

Theory predicts that performance pay boosts wage dispersion. Workers retain a share of individual productivity shocks and high-efficiency workers receive compensation for greater effort. Collective bargaining can mitigate the effect of performance pay on wage inequality by easing monitoring of common effort standards and group-based pay schemes. Analyses of longitudinal employer–employee data show that the introduction of performance-related pay raises wage inequality in non-union firms, but not in firms with high union density. Although performance-related pay appears to be on the rise, the overall impact on wage dispersion is likely to be small, particularly in European countries with influential unions.

A Norwegian perspective on data integration

Labor market outcomes are the results of interactions between workers and firms. To analyze such interactions empirically one needs data with both worker and firm characteristics. Although such data are rare, a number of studies using linked employer-employee data have been published in the last decade. This has also been the case in Norway, where the strategy of relying on administrative registers in the production of official statistics have made it possible to construct large-scale linked employer-employee datasets for research purposes.