AUTHOR=Xiao Renhong TITLE=Dynamic high-frequency dependence structure of Chinese agricultural commodity futures based on the semi-parametric copula JOURNAL=Frontiers in Applied Mathematics and Statistics VOLUME=Volume 9 - 2023 YEAR=2023 URL=https://www.frontiersin.org/journals/applied-mathematics-and-statistics/articles/10.3389/fams.2023.1121460 DOI=10.3389/fams.2023.1121460 ISSN=2297-4687 ABSTRACT=This paper investigates the dynamic high-frequency dependence structure of Chinese four major agricultural commodity futures by utilizing a semi-parametric copula-based multivariate model with 5-minute high-frequency trading data. The empirical results show that the daily dependence between the agricultural commodity futures is time-varying and slightly asymmetric, and that this dependence and its asymmetry are more pronounced during the world food crisis (2007-2008) and the global financial crisis (2008-2011). Furthermore, the intraday dependence structure exhibits a lopsided inverted U-shaped pattern with relatively lower dependence level around the opening and closing time, and a peak around the mid-trading day. This paper contributes the literatures by revealing the three typical dynamic characteristics of dependence structure of Chinese agricultural commodity futures market, and developing the semi-parametric copula model with high-frequency data.