信息基础设施建设与企业专业化分工——基于国家智慧城市建设的自然实验

Information Infrastructure Construction and Corporate Vertical Specialization: A Natural Experiment Based on Chinese Smart City Construction

《财经研究》2023年49卷第6期 页码：34 - 48 online：2023年6月3日

作者

中：袁淳1 , 从阓匀1 , 耿春晓2

英：Yuan Chun1, Cong Huiyun1, Geng Chunxiao2

作者单位：1. 中央财经大学 会计学院，北京100081; 2. 山东大学 经济学院，山东 济南 250100

摘要及关键词

摘要：在信息技术高速发展的时代背景下，信息基础设施建设的战略重要性日益凸显，其经济效应随之成为亟待考察的重要问题。文章利用国家智慧城市建设这一自然实验，从企业边界这一制度经济学关注的核心话题切入，考察了信息基础设施建设对企业专业化分工的影响。研究结果表明，智慧城市建设所带来的信息基础设施建设水平提升显著推动了企业专业化分工。机制分析发现，上述推动作用主要通过智慧城市建设降低外部交易成本来实现。异质性分析表明，当企业内部管控成本较高时，智慧城市建设对企业专业化分工水平的推动作用有所减弱。最后，智慧城市建设通过推动企业专业化分工能够进一步提高企业全要素生产率。文章丰富了信息基础设施建设的经济效应研究，为评估智慧城市建设的实施效果提供了参照，也为进一步推进信息化发展战略提供了政策启示。

关键词：信息基础设施；专业化分工；智慧城市建设

Summary: The 21st century is an information age. In the process of promoting the implementation of informatization development strategy, the construction of information infrastructure plays the role of basic support and strong guarantee. Under this background, the economic effect of information infrastructure construction has become an epoch-making proposition. As so far, there is little research on the economic consequences of information infrastructure construction from the perspective of corporate boundary. Corporate boundary, i.e., the choice of corporate vertical specialization versus corporate vertical integration, is not only the core issue of new institutional economics, but also enlightening to smooth the circulation of the national economy and speed up the construction of a new development pattern. Smart City is a new form of urban informatization development under the background of the rapid development of information technology represented by Mobile Internet, Internet of Things, and Big Data. The construction of information infrastructure is the key content of Smart City. Using the construction of Smart City as an exogenous shock on the degree of information infrastructure construction in pilot cities, this paper investigates the impact of information infrastructure construction on corporate vertical specialization utilizing a staggered DID specification. Empirical research finds that Smart City construction significantly promotes corporate vertical specialization. Mechanism analysis indicates that the promoting effect is mainly achieved through the reduction of external transaction costs. Cross-sectional analysis indicates that when the corporate internal organizational cost is higher, the promoting effect is attenuated. It is also found that the construction of information infrastructure can further improve corporate total factor productivity by promoting corporate vertical specialization. The results suggest that the construction of information infrastructure, including Smart City, should be continuously promoted to deepen corporate vertical specialization and improve economic efficiency. The possible contributions of this paper are as follows: First, from the perspective of corporate boundary, it investigates the impact of information infrastructure construction on corporate vertical specialization, which contributes to the related research on the micro-economic consequences of information infrastructure construction. Second, it supplements the research on the determinants of corporate boundary, especially the role played by informatization. Third, it enriches the policy effect evaluation of Smart City from the perspective of corporate vertical specialization.

Key words: information infrastructure; corporate vertical specialization; Smart City construction

其他信息

DOI：10.16538/j.cnki.jfe.20220814.202

收稿日期：2022-05-08

基金项目：国家自然科学基金项目（71872199，72272169）；北京市社会科学基金项目（20JJB015）

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