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It is well known that a country’s economy is very dependent on the export of goods and services produced by that country. This depends on exporting either mining products such as oil and gas or non-oil and gas. This paper will study the data export of oil and gas and data export of non-oil and gas of Indonesian over the years 2008-2019. The aim of this study is to obtain the best model that can describe the pattern of the data export of oil and gas and data export of non-oil and gas. From the results of the analysis, researchers found that the best models that can describe the pattern of data export of oil and gas and data export of non-oil and gas are the same, namely: ARMA (2.1) -GARCH (1.1) models. These models for both data are very significant with P < 0.0001 and < 0.0001, respectively, R-squares are 0.8797 and 0.7604, respectively and mean average percentage errors are 12.41 and 6.92, respectively. These models are very reliable, and they can be used to predict (forecast) for the next 12 periods (months).

DYNAMIC MODELING DATA EXPORT OIL AND GAS AND NON-OIL AND GAS BY ARMA(2,1)-GARCH(1,1) MODEL: STUDY OF INDONESIAN’S EXPORT OVER THE YEARS 2008-2019