CHEN, Kejia. Study on the Impact of Tax Competition on Urban Innovation: Based on the Mediating Effect of Fiscal Science and Technology Expenditure. Financial Economics Research, [S. l.], v. 3, n. 5, p. 1–11, 2026. DOI: 10.70267/fer.v3n5.0111. Disponível em: https://journals.zeuspress.org/index.php/FER/article/view/1602. Acesso em: 30 oct. 2026.