Abstract
The problem with Indonesian coal is that the increase in coal demand is not accompanied by domestic coal production, because coal producers fail to meet the requirements of coal sales in the domestic market. This research purpose is to determine the model and prediction of coal production until 2025. Quantitative research using the autoregressive conditional heteroscedasticity (ARCH) method. The prediction results of the ARCH (2) model of coal production will still fluctuate until 2025.Keywords: Forecasting, Model, Coal, ARCH, GARCH
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