PENG, J. . Relation between discontinuous variation and stock return movement based on poisson process: Evidence from China. Asian Economic and Financial Review , [S. l.], v. 15, n. 9, p. 1395–1405, 2025. DOI: 10.55493/5002.v15i9.5585. Disponível em: https://archive.aessweb.com/index.php/5002/article/view/5585. Acesso em: 17 sep. 2025.