Mukhaninga, Mueletshedzi; Ravele, Thakhani; Sigauke, Caston - In: Economies : open access journal 13 (2025) 8, pp. 1-25
This study applies Gradient Boosting Machines (GBMs) and principal component regression (PCR) to forecast the closing price of the Johannesburg Stock Exchange (JSE) All-Share Index (ALSI), using daily data from 2009 to 2024, sourced from the Wall Street Journal. The models are evaluated under...