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| Titre : | Concentration in US labor markets: Evidence from online vacancy data (2020) |
| Auteurs : | José Azar ; Ioana Marinescu ; Marshall Steinbaum ; Bledi Taska |
| Type de document : | Article : document électronique |
| Dans : | Labour economics (vol. 66, October 2020) |
| Article en page(s) : | Article 101886 |
| Langues: | Anglais |
| Catégories : |
Thésaurus CEREQ SITUATION DU MARCHE DU TRAVAIL ; DISPARITE REGIONALE ; SALAIRE ; INTERNET ; ETATS UNIS |
| Résumé : | Using data on the near-universe of US online job vacancies collected by Burning Glass Technologies in 2016, we calculate labor market concentration using the Herfindahl-Hirschman index (HHI) for each commuting zone by 6-digit SOC occupation. The average market has an HHI of 4,378, or the equivalent of 2.3 recruiting employers. 60% of labor markets are highly concentrated (above 2500 HHI). Highly concentrated markets account for 16% of employment. Labor market concentration is negatively correlated with wages, and there is no relationship between measured concentration and an occupation’s skill level. These indicators suggest that employer concentration is a meaningful measure of employer power in labor markets, that there is a high degree of employer power in labor markets, and also that it varies widely across occupations and geography. |
| Document Céreq : | Non |
| En ligne : | https://doi.org/10.1016/j.labeco.2020.101886 |
