ZIYAO SONG. The Impact of 5G Factory Construction on Corporate Financial Efficiency— An Empirical Analysis Based on Manufacturing Listed Companies on the Shanghai and Shenzhen A‑Share Markets. Financial Economics Research, [S. l.], v. 3, n. 2, p. 52–59, 2026. DOI: 10.70267/fer.250302.5259. Disponível em: https://journals.zeuspress.org/index.php/FER/article/view/730. Acesso em: 15 apr. 2026.