The impact of higher education investment on the urban-rural income gap: An analysis of mediating and threshold effects based on data from China’s eight major comprehensive economic zones

• Shuyao Liu ,

  Roles Conceptualization, Data curation, Investigation, Writing – original draft, Writing – review & editing

  * E-mail: latoya123@stu.syau.edu.cn

  Affiliation The College of Economics and Management, Shenyang Agricultural University, Shenyang, China

  https://orcid.org/0009-0007-4259-2998

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• Yan Zhang,

  Roles Conceptualization, Writing – original draft, Writing – review & editing

  Affiliation Institute of Higher Education Research, Shenyang Agricultural University, Shenyang, China

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• Yanbo Liu,

  Roles Writing – review & editing

  Affiliation Institute of Higher Education Research, Shenyang Agricultural University, Shenyang, China

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• Ning Wang

  Roles Writing – original draft, Writing – review & editing

  Affiliation Center for Higher Education Research, Hainan Tropical Ocean University, Sanya, China

  https://orcid.org/0000-0002-3009-2669

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