The quantile time–frequency connectedness of economic policy uncertainty between China and the G7 countries

• Jizhi Zhao ,

  Roles Formal analysis, Investigation, Software, Writing – original draft

  * E-mail: martingale@163.com

  Affiliation School of Business, Wuyi University, Wuyishan, Fujian, China

  https://orcid.org/0009-0002-4872-1547

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• Guangfu Chen,

  Roles Conceptualization, Formal analysis, Investigation

  Affiliation School of Mathematics and Computer, Wuyi University, Wuyishan, Fujian, China

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• Ying Song

  Roles Investigation, Project administration

  Affiliation School of Business, Wuyi University, Wuyishan, Fujian, China

  https://orcid.org/0009-0009-3483-8403

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