Anotace:
Emission reduction technology R&D is an important way to promote the competitiveness of firms, and green credit plays an important role. Revealing the formation of green credit and carbon emission reduction technology R&D decisions and their mechanism is of great theoretical and practical significance for improving the green competitiveness of enterprises. Using the sequential game method, this study constructs a supply chain model consisting of one bank and two firms, analyzes the firms’ green credit decisions and carbon emission reduction technology R&D decisions for competitiveness, considering R&D uncertainty, and expands the model by introducing environmental corporate social responsibility (ECSR) and nationalization. The results show that in Cournot competition, to ensure competitive advantage, only two cases can be subgame perfect Nash equilibrium (SPNE), and emission reduction technology R&D decisions are influenced by various factors, including carbon tax, deposit rate, and green credit management level. After the introduction of the ECSR, the total loan amount and equilibrium lending rate do not change, while under the nationalization policy, the total loan amount will decrease, and the lending rate will increase. These findings have theoretical significance for promoting carbon emission reduction technology R&D, optimizing green credit for banks, improving the green competitiveness of firms, and formulating effective industrial and financial policies for governments.