Nonlinear Effects of Eco-Industrial Parks on Sulfur Dioxide and Carbon Dioxide Emissions—Estimation Based on Nonlinear DID

Qunfang Xu, Kairui Cao, Jiaying Dai, Yuanyuan Zhu and Yue Dai ()
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Qunfang Xu: Business School, Ningbo University, Ningbo 315211, China
Kairui Cao: Business School, Ningbo University, Ningbo 315211, China
Jiaying Dai: Business School, Ningbo University, Ningbo 315211, China
Yuanyuan Zhu: Faculty of Foreign Languages, Ningbo University, Ningbo 315211, China
Yue Dai: College of Education Science, Guiyang University, Guiyang 550081, China

Sustainability, 2023, vol. 15, issue 3, 1-19

Abstract: Eco-industrial parks (EIPs) promote the coordination of economic development and environmental protection. This paper uses the nonlinear DID method, with the data of 288 cities spanning from 2003–2019, to study the nonlinear effects of EIPs on SO 2 and CO 2 emissions, aiming to portray the nonlinear and heterogeneous characteristics of EIP’s effects. Meanwhile, this paper examines the effects of EIPs more accurately and completely. The main results are as follows: 1. EIPs can significantly reduce CO 2 and SO 2 emissions, but there is significant heterogeneity between the effects. 2. The effect of EIPs on SO 2 and CO 2 emissions is nonlinear. In addition, it shows significant nonlinear characteristics as the change of foreign investment and population density in cities. Therefore, it is important to consider these nonlinear characteristics when establishing and evaluating EIPs. This paper accurately identifies the nonlinear effects of EIPs and provides some suggestions for the future development of EIPs.

Keywords: EIPs; SO 2 emissions; CO 2 emissions; nonlinear DID (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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