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Journal of Probability and Statistics
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2020
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Article
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Tab 1
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Research Article
Forecasting the Covolatility of Coffee Arabica and Crude Oil Prices: A Multivariate GARCH Approach with High-Frequency Data
Table 1
DF unit root test of stationarity for level prices, with trend.
Series
-
statistic
MacKinnon approximate
-
value
Crude oil
ā1.675
0.4562
Arabica coffee
ā2.053
0.3896