R&D investment and total factor productivity in China’s pharmaceutical industry: The moderating effect of the centralized procurement policy

• Xiujuan Li ,

  Roles Conceptualization, Data curation, Investigation, Methodology, Project administration, Resources, Supervision, Writing – original draft, Writing – review & editing

  * E-mail: lixiujuan@gzcb.com.cn

  Affiliation Economics and Management School, Wuhan University, Wuhan, China,

  https://orcid.org/0009-0000-4182-7088

  ⨯
• Jiachun Xu

  Roles Data curation, Investigation, Project administration, Software, Writing – review & editing

  Affiliation School of Economics, Jinan University, Guangzhou, China

  ⨯