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In a data-rich environment, few studies use many predictors at different frequencies to forecast crude oil returns. This paper proposes a new model, LASSO-MIDAS, which combines LASSO (the least absolute shrinkage and selection operator) and MIDAS (mixed data sampling model) to predict crude oil...
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As an important non-metallic strategic mineral resource, boron plays an important role in the development of national emerging strategic industries. In this study, a complex network approach, core-periphery model and link prediction model are used to analyze the evolution of international trade...
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