# Knowledge Spillovers from Superstar Tech Firms: The Case of Nokia

**Published:** 2024-11-25  
**Categories:** Akateemiset julkaisut  
**URL:** https://www.etla.fi/julkaisut/akateemiset-julkaisut/knowledge-spillovers-from-superstar-tech-firms-the-case-of-nokia/

#### Abstract

Do workers hired from superstar tech firms contribute to better firm performance? To address this question, we analyse the effects of spillovers from Nokia in the context of a quasi-natural experiment: the closure of Nokia’s mobile device division and the massive labor movement it implied. We apply a two-stage difference-in-differences approach with heterogeneous treatment to estimate the causal effects of hiring former Nokia employees. We do not find strong evidence of a positive causal role of former Nokia workers on firm performance in terms of employment, value added, and net sales, and even less so on labor productivity.

*Journal of Tech Transfer, 2024.*

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## Additional Information

**Kirjoittajat:** Ali-Yrkkö, Jyrki - Cherif, Reda - Hasanov, Fuad - Kuosmanen, Natalia - Pajarinen, Mika

**Publication Research:** No

**Kansikuva:** No

**Lataa Pdf:** No

**Key Words:** Human capital, Employment, Nokia, Knowledge spillovers, Superstar firms

**Jel:** D83, J24, J63, L25, L63, O33, O3

**Paivays:** 25.11.2024

**Kieli:** en

**Sarja:** Other articles

https://doi.org/10.1007/s10961-024-10148-9

**Saatavuus:** 2

Journal of Tech Transfer, 2024