Integrated analysis of informality, minimum wage, and monopsony power: A synthesis of meta-analyses with unified theoretical underpinnings
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arXiv
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866918147439722496 |
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| author | Salguero, Ricardo Alonzo Fernandez |
| author_facet | Salguero, Ricardo Alonzo Fernandez |
| contents | This document offers a synthesis of recent economic literature on three interconnected areas of labor markets: informality, the effects of the minimum wage, and monopsony power. Through the consolidation and meta-analysis of findings from multiple existing systematic reviews and meta-analyses, their causes, consequences, and associated public policies are examined. It is concluded that conventional views on these topics often overestimate the magnitude of effects. Policies to reduce informality based solely on lowering formalization costs are largely ineffective, while increased enforcement at the extensive margin shows more promising results. The effects of the minimum wage on employment, measured through the own-wage elasticity (OWE), are consistently modest, suggesting that job losses are limited compared to wage gains. To reconcile and microfound these findings, an integrated theoretical model of firm optimization is introduced, simultaneously incorporating firm heterogeneity, monopsony power, and endogenous formality decisions, rigorously demonstrating how the interaction of these forces can explain the observed empirical regularities. A cross-cutting and significant finding is the omnipresence of publication bias across all these study areas, which tends to inflate the magnitude of the effects reported in the published literature. Corrected estimates of the effects generally approach zero. Meta-regression is established as an indispensable tool for identifying heterogeneity and the true underlying effects in the empirical evidence, compelling a recalibration of both theory and economic policy recommendations towards a more nuanced and integrated approach. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_20465 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Integrated analysis of informality, minimum wage, and monopsony power: A synthesis of meta-analyses with unified theoretical underpinnings Salguero, Ricardo Alonzo Fernandez Theoretical Economics This document offers a synthesis of recent economic literature on three interconnected areas of labor markets: informality, the effects of the minimum wage, and monopsony power. Through the consolidation and meta-analysis of findings from multiple existing systematic reviews and meta-analyses, their causes, consequences, and associated public policies are examined. It is concluded that conventional views on these topics often overestimate the magnitude of effects. Policies to reduce informality based solely on lowering formalization costs are largely ineffective, while increased enforcement at the extensive margin shows more promising results. The effects of the minimum wage on employment, measured through the own-wage elasticity (OWE), are consistently modest, suggesting that job losses are limited compared to wage gains. To reconcile and microfound these findings, an integrated theoretical model of firm optimization is introduced, simultaneously incorporating firm heterogeneity, monopsony power, and endogenous formality decisions, rigorously demonstrating how the interaction of these forces can explain the observed empirical regularities. A cross-cutting and significant finding is the omnipresence of publication bias across all these study areas, which tends to inflate the magnitude of the effects reported in the published literature. Corrected estimates of the effects generally approach zero. Meta-regression is established as an indispensable tool for identifying heterogeneity and the true underlying effects in the empirical evidence, compelling a recalibration of both theory and economic policy recommendations towards a more nuanced and integrated approach. |
| title | Integrated analysis of informality, minimum wage, and monopsony power: A synthesis of meta-analyses with unified theoretical underpinnings |
| topic | Theoretical Economics |
| url | https://arxiv.org/abs/2509.20465 |