The Impact of Intellectual Property Rights City Policy on Firm Green Innovation: A Quasi-Natural Experiment Based on a Staggered DID Model

Xingneng XiaTao HuangSheng Zhang2025-05-222025-05-22https://tustorage.ulb.tu-darmstadt.de/handle/tustorage/38194600The Impact of Intellectual Property Rights City Policy on Firm Green Innovation: A Quasi-Natural Experiment Based on a Staggered DID Modelsupplierxml