The synergistic effect of digital transformation and R&D investments on enterprise innovation performance

This study uses A-share listed companies in Shanghai and Shenzhen from 2013 to 2021 as samples, and conducts the following sorting and screening: (1) Delete the samples of companies with ST and * ST; (2) delete the sample of financial companies; (3) delete the samples with missing data, and finally, gain 21,577 sample observation values of 3446 enterprises. The data comes from CSMAR and CNRDS databases, and has been standardized.

本研究以2013年至2021年沪深A股上市公司作为研究样本，并开展以下筛选与整理工作：（1）剔除ST及*ST类公司样本；（2）剔除金融类公司样本；（3）剔除存在数据缺失的样本；最终获得3446家企业的21577个样本观测值。本研究数据取自国泰安数据库（CSMAR）与中国研究数据服务平台（CNRDS），且已完成标准化处理。