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Using online vacancy posts to analyze the return to skills and knowledge in the formal labor market

Author

Listed:
  • Juan C. Chaparro
  • Nataly Corredor-Martinez
  • Eleonora Dávalos
  • Leonardo Fabio Morales

Abstract

The advent of digital technology and widespread internet access has transformed how firms advertise job vacancies and how job seekers conduct their searches. This paper presents a novel methodology for identifying job-related skills and knowledge from the textual descriptions of online job postings, using data from Colombia’s largest public online job board and the O*NET database. By analyzing posted wages and applying a data-driven approach to identify skill requirements, the study estimates the wage returns associated with specific skills and knowledges in the formal Colombian labor market. The findings indicate that, within a given occupation, the prevalence of certain basic skill categories such as mathematics, writing, time management, and instructing is associated with higher wage returns. Notably, most of the skill categories with significant positive returns are not occupation-specific; rather, they represent transferable capabilities that enhance performance across a wide range of tasks and occupations. *****RESUMEN: El auge de la tecnología digital y el acceso generalizado a internet ha transformado la forma en que las empresas anuncian vacantes laborales y cómo los buscadores de empleo realizan sus búsquedas. Este artículo presenta una metodología para identificar habilidades y conocimientos relacionados con el trabajo a partir de las descripciones textuales de ofertas de empleo en línea, utilizando datos del mayor portal público de empleo en línea de Colombia y la base de datos O*NET. Al analizar los salarios publicados y aplicar un enfoque basado en datos para identificar los requisitos de habilidades, el estudio estima los retornos salariales asociados con habilidades y conocimientos específicos en el mercado laboral formal colombiano. Los hallazgos indican que, dentro de una ocupación determinada, la prevalencia de ciertas categorías de habilidades básicas como matemáticas, redacción, gestión del tiempo e instrucción está asociada con mayores retornos salariales. Cabe destacar que la mayoría de las categorías de habilidades con retornos positivos significativos no son específicas de una ocupación; más bien, representan capacidades transferibles que mejoran el desempeño en una amplia gama de tareas y ocupaciones.

Suggested Citation

  • Juan C. Chaparro & Nataly Corredor-Martinez & Eleonora Dávalos & Leonardo Fabio Morales, 2025. "Using online vacancy posts to analyze the return to skills and knowledge in the formal labor market," Borradores de Economia 1337, Banco de la Republica de Colombia.
  • Handle: RePEc:bdr:borrec:1337
    DOI: 10.32468/be.1337
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    Keywords

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    JEL classification:

    • J23 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Labor Demand
    • J24 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Human Capital; Skills; Occupational Choice; Labor Productivity
    • J31 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Wage Level and Structure; Wage Differentials
    • J63 - Labor and Demographic Economics - - Mobility, Unemployment, Vacancies, and Immigrant Workers - - - Turnover; Vacancies; Layoffs
    • O15 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Economic Development: Human Resources; Human Development; Income Distribution; Migration

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