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Gender wage difference estimation at quantile levels using sample survey data

Author

Listed:
  • Mihaela-Cătălina Anastasiade-Guinand

    (Swiss Federal Statistical Office)

  • Alina Matei

    (University of Neuchâtel)

  • Yves Tillé

    (University of Neuchâtel)

Abstract

This paper is motivated by the growing interest in estimating gender wage differences in official statistics. The wage of an employee is hypothetically a reflection of her or his characteristics, such as education level or work experience. It is possible that men and women with the same characteristics earn different wages. Our goal is to estimate the differences between wages at different quantiles, using sample survey data within a superpopulation framework. To do this, we use a parametric approach based on conditional distributions of the wages in function of some auxiliary information, as well as a counterfactual distribution. We show in our simulation studies that the use of auxiliary information well correlated with the wages reduces the variance of the counterfactual quantile estimates compared to those of the competitors. Since, in general, wage distributions are heavy-tailed, the interest is to model wages by using heavy-tailed distributions like the GB2 distribution. We illustrate the approach using this distribution and the wages for men and women using simulated and real data from the Swiss Federal Statistical Office.

Suggested Citation

  • Mihaela-Cătălina Anastasiade-Guinand & Alina Matei & Yves Tillé, 2023. "Gender wage difference estimation at quantile levels using sample survey data," TEST: An Official Journal of the Spanish Society of Statistics and Operations Research, Springer;Sociedad de Estadística e Investigación Operativa, vol. 32(4), pages 1392-1433, December.
    • Handle: RePEc:spr:testjl:v:32:y:2023:i:4:d:10.1007_s11749-023-00885-8
    DOI: 10.1007/s11749-023-00885-8
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