How does China's big data policy affect the digital economy of cities? Evidence from national big data comprehensive pilot zones

Positive impacts of green finance on environmental protection investment: Evidence from green finance reform and innovations pilot zone

“…In addition, many literature show that big data and digital economy will affect the green transformation of enterprises. This study refers Hu et al[ 41 ] and Wang et al[ 42 ], which took the National Big Data Comprehensive Pilot Zone established in China in 2016 as a quasi-natural experiment. The variable Big Data is constructed based on DID model and added to the regression model as a control variable.…”