The model depicts Digital Real Integration connecting to Green Innovation, Digital Transformation, and Financing Constraints as mediating variables. These three factors connect to Corporate Green Total Factor Productivity. A direct effect from Digital Real Integration to Corporate Green Total Factor Productivity is also shown, labelled H 1 Model 3. Mediating effects are labelled H 2 a to H 2 c Model 4 to 5, indicating indirect pathways through the three mediators.
Methodological framework and variable relationship