Workplace Peer Effects in Fertility Decisions

Maria De Paola (), Roberto Nisticò () and Vincenzo Scoppa ()

CSEF Working Papers from Centre for Studies in Economics and Finance (CSEF), University of Naples, Italy

Abstract: This paper examines the impact of co-workers’ fertility on individual fertility decisions. Using matched employer-employee data from Italian social security records (2016–2020), we estimate how fertility among co-workers of similar age and occupation affects the individual likelihood of having a child. We exploit variation introduced by the 2015 Jobs Act, which reduced fertility among workers hired under weaker employment protection. Focusing on workers hired before the reform and using the share of colleagues hired after the reform as an instrument for peer fertility, we find that a one-percentage-point increase in peer fertility raises individual fertility by 0.4 percentage points (a 10% increase). Heterogeneity analysis suggests that while social influence and social norms are key mechanisms, information sharing and career concerns, particularly among women, tend to moderate the response. Our findings highlight how changes in employment protection may have unintended fertility spillovers through workplace social interactions.

Keywords: Fertility; Peer Effects; Instrumental Variables; Employment Protection Legislation. (search for similar items in EconPapers)
JEL-codes: C3 J13 J41 J65 M51 (search for similar items in EconPapers)
Date: 2024-04-05, Revised 2025-09-01
New Economics Papers: this item is included in nep-lab, nep-net and nep-ure
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Related works:
Working Paper: Workplace Peer Effects in Fertility Decisions (2025)
Working Paper: Workplace Peer Effects in Fertility Decisions (2025)
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Persistent link: https://EconPapers.repec.org/RePEc:sef:csefwp:714

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