2026-10-08T17:33:35Z https://www.scidb.cn/oai

10.57760/sciencedb.012kq 2026-09-20T10:24:31Z

2026-09-20 Multimodal Datasets on the New Energy Vehicle Innovation Chain in the Pearl River Delta (2009–2025) doi:10.57760/sciencedb.012kq en Three cleaned analytical datasets underlying the study of the Pearl RiverDelta new energy vehicle innovation chain: (1) 4,036 innovation entities;(2) 95 patent-based cooperation ties; (3) 187 NEV policy documents codedby subsidy status, issuing level, and intensity. Raw data were compiledfrom the CNIPA open patent database, official government portals, andpublicly released enterprise/institution lists. new energy vehicle; innovation chain; Pearl River Delta; patent cooperation; policy coding; social network analysis; TERGM 蒋忠海 PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset Science Data Bank