Publications
금융권 유일의 연구 조직으로 다양한 신기술 영역에서 하나금융그룹의 위상을 높이고
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Papers
Semicovariances and machine learning methods in oil and gold futures markets
- 발행일
- 2021.03.24
- 발행기관
- 재무금융공동학술대회(2021)
- 저자
- Kim, Taeyoon , Kim, Byung-June, Jang, Bong-Gyu , Kim, Kyeong Tae
- Link
- https://ssrn.com/abstract=3787938
초록
We adopt the semicovariance decomposition method and machine-learning models to forecast the realized correlation and realized volatility of oil and gold futures markets. The general framework consists of three steps: data preprocessing, accumulating window cross-validation, and performance evaluation. Data preprocessing generates a time-series of realized covariance matrices and semicovariance matrices as model input. Given input data at each time step, forecasting models are fitted with cross-validation. Forecasting models are evaluated using out-of-sample accuracy and robustness tests. In predicting the risk and correlation of oil and gold, the semicovariance decomposition method can achieve higher accuracy and stable results toward the various periods of training data compared to the benchmark DCC-GARCH model. A combination of random forest and the semicovariance decomposition method can increase the out-of-sample accuracy. These results show a possibility that the semicovariance decomposition combined with machine learning techniques can be efficient even in the commodity futures market.
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