Monopsony and the Wage Effects of Migration

• 成果类型: Article
• 署名作者: Amior, Michael; Manning, Alan
• 署名单位: Hebrew University of Jerusalem; University of London; London School Economics & Political Science
• 刊物名称: ECONOMIC JOURNAL
• ISSN/ISSBN: 0013-0133
• DOI: 10.1093/ej/ueaf053
• 发表日期: 2026
• 关键词: labor-markets evidence; educational-attainment; firm heterogeneity; legal status; immigration; IMPACT; equilibrium; elasticities; RECRUITMENT; mobility

摘要

If labour markets are competitive, migration can only affect native wages via marginal products. But under imperfect competition, migration may also increase wage mark-downs-if firms have greater monopsony power over migrants than natives, but cannot perfectly wage discriminate. While marginal products depend on relative labour supplies across skill cells, mark-downs depend on migrant concentration within them. This insight can help rationalise empirical violations of canonical migration models. Using US data, we conclude that migration does increase mark-downs: this expands aggregate native income, but redistributes it from workers to firms. Policies which constrain monopsony power over migrants can mitigate these adverse wage effects.