LAI, Hongjie. Volatility Clustering and Short-Term Forecasting of the Hang Seng Tech Index Based on the ARIMA-GARCH Model . Finance & Economics, [S. l.], v. 4, n. 5, p. 11192, 2026. Disponível em: https://fe.deanfrancis.press/article/view/1202. Acesso em: 21 oct. 2026.