AUTHOR=Fan Xuechen , Xu Shuhua 

TITLE=Does city-county merger improve urban carbon emission efficiency? An empirical analysis based on the difference-in-differences model

JOURNAL=Frontiers in Sustainable Cities

VOLUME=Volume 7 - 2025

YEAR=2025

URL=https://www.frontiersin.org/journals/sustainable-cities/articles/10.3389/frsc.2025.1561308

DOI=10.3389/frsc.2025.1561308

ISSN=2624-9634