AUTHOR=Jiang Xinyang , Wei Siyi , Yi Chen , Liu Siyu , Yang Bo , Wu Yao 

TITLE=The impact of urban polycentralization and scale expansion on economic efficiency: evidence from Chinese cities

JOURNAL=Frontiers in Environmental Science

VOLUME=13

YEAR=2025

URL=https://www.frontiersin.org/journals/environmental-science/articles/10.3389/fenvs.2025.1545346

DOI=10.3389/fenvs.2025.1545346

ISSN=2296-665X