2026-10-12T13:56:33Z https://www.scidb.cn/oai

10.57760/sciencedb.j00100.00042 2025-12-12T21:58:06Z

2025-12-12 Spatial distribution of city-level product upgrading in China, 2003 and 2011 doi:10.57760/sciencedb.j00100.00042 en This dataset covers two parts of information: (1) statistical information on the upgrading and product expansion of export enterprises in Chinese prefecture level cities in 2003 and 2011, which was compiled by the author based on the Chinese export customs database. (2) Arcgis base map with the above statistical information.  firm-product; city-level; export upgrading Guo Qi Zhang Haoyu He Canfei Zhu Shengjun RESTRICTED dataset Science Data Bank