SHI, Jia. Policies of Model Cities for Intellectual Property Protection and the Digitization Level of Cultural Industries: An Empirical Analysis Based on the DID Model. Finance & Economics, [S. l.], v. 2, n. 3, p. 1662, 2024. DOI: 10.61173/3a2jse21. Disponível em: https://fe.deanfrancis.press/article/view/1006. Acesso em: 4 nov. 2026.