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Sustainability
Volume 17
Issue 9
10.3390/su17094116
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Article

Industry Concentration and Digital Process Innovation: Evidence from Chinese Rail Transit Firms

by
Yi Jin
1 and
Bo Liu
2,*
1
College of Management, Southwest Minzu University, Chengdu 610225, China
2
School of Economics and Management, Southwest University of Science and Technology, Mianyang 621010, China
*
Author to whom correspondence should be addressed.
Sustainability 2025, 17(9), 4116; https://doi.org/10.3390/su17094116
Submission received: 3 March 2025 / Revised: 29 April 2025 / Accepted: 29 April 2025 / Published: 2 May 2025
(This article belongs to the Special Issue Sustainable Transportation Systems Design and Management)
Versions Notes

Abstract

Market competition and industrial environment have a significant impact on firms’ innovation behavior. Hence, this study aims to uncover the connection between industry concentration and digital process innovation in Chinese rail transit firms. Grounded in innovation diffusion theory, we explore the effects of industry concentration on digital process innovation and analyze the contingent factors of firm size and environmental support on the above effects. Through empirical analyses of data from Chinese rail transit firms, this study reveals that industry concentration inhibits digital process innovation. Firm size strengthens the negative impacts of industry concentration, while environmental support weakens the main effect. Our findings offer a complementary framework for industry organization activities and practical implications for digital process innovation.
Keywords: industry concentration; digital process innovation; firm size; environmental support; Chinese rail transit industry industry concentration; digital process innovation; firm size; environmental support; Chinese rail transit industry

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MDPI and ACS Style

Jin, Y.; Liu, B. Industry Concentration and Digital Process Innovation: Evidence from Chinese Rail Transit Firms. Sustainability 2025, 17, 4116. https://doi.org/10.3390/su17094116

AMA Style

Jin Y, Liu B. Industry Concentration and Digital Process Innovation: Evidence from Chinese Rail Transit Firms. Sustainability. 2025; 17(9):4116. https://doi.org/10.3390/su17094116

Chicago/Turabian Style

Jin, Yi, and Bo Liu. 2025. "Industry Concentration and Digital Process Innovation: Evidence from Chinese Rail Transit Firms" Sustainability 17, no. 9: 4116. https://doi.org/10.3390/su17094116

APA Style

Jin, Y., & Liu, B. (2025). Industry Concentration and Digital Process Innovation: Evidence from Chinese Rail Transit Firms. Sustainability, 17(9), 4116. https://doi.org/10.3390/su17094116

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