Table 2 Variable definition.
From: Empirical evidence and role mechanisms of big data enabling corporate green development
Variable category | Variable name | Variable symbol | Calculation method |
|---|---|---|---|
Dependent variable | Enterprise green development index | EGDI | Calculated using the entropy method |
Independent variable | Big Data Pilot Policy | DID | Time*Treat. Time is set as 1 if the year is in 2016 and after, otherwise 0; Treat is set as 1 if the enterprise is registered in the pilot city, otherwise 0 |
Control Variables | Asset-liability ratio | LEV | liabilities / (total assets) |
Asset size | Size | ln(total assets of the enterprise) | |
Return on net assets | ROA | (net profit) / (total assets) | |
Attention by research reports | Report | Number of research papers analyzing the company during the year | |
Whether the directors and supervisors have overseas background | Oversea | Set as 1 if directors or supervisors has overseas background, otherwise 0 | |
Shareholding concentration H-Index | Concentration_H | ∑((the percentage of shares held by the 5 largest shareholder)2) |
