AUTHOR=Zhang Yuze , Zhang Jisong , Liu Yuqing TITLE=Does green finance promote the improvement of regional eco-efficiency? Direct and spillover effects JOURNAL=Frontiers in Environmental Science VOLUME=12 YEAR=2024 URL=https://www.frontiersin.org/journals/environmental-science/articles/10.3389/fenvs.2024.1506734 DOI=10.3389/fenvs.2024.1506734 ISSN=2296-665X