Keywords: Two-step control function approach
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Journal Articles
Managerial Finance (2026) 52 (7): 1236–1252.
Published: 23 January 2026
... a positive causal peer effect on firm innovation. We measure firm innovation using patents and citations and model these outcomes explicitly as counts. All specifications are estimated using negative binomial count models, combined with a two-step control function approach to address endogeneity in peer...

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