Correction: Li et al. The Opening of High-Speed Railway and Coordinated Development of the Core–Periphery Urban Economy in China. Sustainability 2023, 15, 4677

The authors would like to make the following corrections about the published paper [1]. The changes are as follows:

(1)

Deleting the references.

Readers noticed that there are unjust references cited in this paper. After checking with the Editorial Board, the authors decided to delete References [30–40].

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Zhao, Y.; Peng, B.; Elahi, E.; Wan, A. Does the extended producer responsibility system promote the green technological innovation of enterprises? An empirical study based on the differenc-in-differences model. J. Clean. Prod. 2021, 319, 128631.

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Elahi, E.; Khalid, Z. Estimating smart energy inputs packages using hybrid optimization technique to mitigate environmental emissions of commercial fish farms. Appl. Energy 2022, 326, 119602.

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(2)

Replacing the following sentence in “Section 3.1. Model Construction”

“where GAP_it represents the level of coordinated regional development of city i in year t. The variable HSR_it is the dummy variable for whether city i opens a high-speed railway in year t. Controls represents the control variable. μ_i and ν_t are the fixed effects of city and year, respectively. ε_it is the random error term assumed to be normally distributed at zero mean value (Ahmed et al., 2016 [30]; Peng et al., 2020 [31]; Zhao et al., 2020; Zhao et al., 2021; Zhong et al., 2020 [32–34]) and constant variance (Altangerel et al., 2015 [35]; Elahi and Khalid, 2022 [36]; Elahi, Khalid, et al., 2022 [37]; Elahi et al., 2017 [38]; Elahi, Zhang, et al., 2022 [39]; Scaringella and Chanaron, 2016 [40]).”

with

“where GAP_it represents the level of coordinated regional development of city i in year t. The variable HSR_it is the dummy variable for whether city i opens a high-speed railway in year t. Controls represents the control variable. μ_i and ν_t are the fixed effects of city and year, respectively. ε_it is the random error term assumed to be normally distributed at zero mean value and constant variance.”

(3)

Modifying the authors’ names.

Replacing the names of Peng Cheng and Wang Jian to Cheng Peng and Jian Wang. The author’s initials also need to be modified.

The authors state that the scientific conclusions are unaffected. This correction was approved by the Academic Editor. The original publication has also been updated.