The effects of competition and equal treatment laws on gender wage differentials

Summary

The research paper, "The effects of competition and equal treatment laws on gender wage differentials" by Weichselbaumer and Winter-Ebmer (2007), investigates the impact of economic and legal factors on the wage disparities between men and women. The authors build upon economic theories, such as Becker's (1957) argument that competitive markets should, in the long run, eliminate inefficient discrimination. However, recognizing that nearly all countries have also implemented laws mandating equal treatment, the paper empirically assesses the influence of both these economic and legal variables. For their methodology, the authors constructed a novel international dataset on the gender wage gap. This dataset was developed through a meta-analysis of numerous existing studies, allowing them to synthesize a broad range of findings on male-female wage differentials. The focus was on the "unexplained residual" of these wage differentials, which represents the portion not accounted for by observable worker characteristics and is often attributed to discrimination. By using a meta-analytic approach, the study aimed to provide a comprehensive cross-country perspective on the effectiveness of different mechanisms in addressing gender wage inequality. The study's findings indicate that both heightened economic competition and the enforcement of equal treatment laws are significant in reducing the gender wage gap. Specifically, the meta-analysis revealed a clear correlation: as market competition increases, the gender wage gap tends to narrow. Similarly, the adoption and enforcement of international conventions and national legislation promoting equal treatment for men and women in the workplace were found to contribute to a smaller wage differential. Conversely, the research also highlighted that legislation restricting women from performing certain jobs deemed "strenuous or dangerous" tended to exacerbate the gender wage gap. The implications of these findings suggest that both market forces and robust legal frameworks play crucial, complementary roles in mitigating gender-based wage discrimination. They provide empirical support for policy interventions aimed at fostering competitive markets and strengthening equal opportunity laws to achieve greater wage equality.