环境规制与企业绿色创新 // cnrds_firm_innovation

Dataset: CNRDS 中国研究数据服务平台企业创新与专利数据

identification: firm and year fixed effects / policy DID

→ start analysis with this design ← back to dataset variables

dependent variable

green_patent_apply · 绿色专利申请数 · continuous

core independent variables (2)

name	label	type
digital_word_freq	数字化转型词频	continuous
rd_intensity	研发投入强度	continuous

controls (2)

name	label	type
stkcd	股票代码	identifier
year	年份	identifier