Quantile connectedness across BRICS and international grain futures markets: Insights from the Russia-Ukraine conflict

Yan-Hong Yang, Ying-Hui Shao and Wei-Xing Zhou

Papers from arXiv.org

Abstract: This study examines the quantile connectedness among grain futures markets in BRICS and international markets, with a particular focus on the ongoing and escalating impacts of the Russia-Ukraine conflict. The findings reveal significant heterogeneity in spillover effects across different quantiles and market conditions. Specifically, the time-varying total connectedness index (TCI) consistently fluctuated around 95\% under both extreme bearish and bullish market conditions, markedly higher than in normal market conditions. Moreover, across all quantile levels, the TCI was higher during the pre-outbreak period than in the post-outbreak period. This systemic risk has notably decreased following the onset of the Russia-Ukraine conflict and the subsequent changes to the Black Sea Grain Initiative. Apart from rice, U.S. grain futures maintained a dominant position as benchmarks for international grain prices, exerting substantial influence over the grain futures markets in BRICS throughout most of the period. Finally, the study highlights that the influence of grain type and regional proximity strengthens pairwise connectedness among futures markets, with short-term spillovers being dominant and the spillover effect generally symmetric across quantiles.

Date: 2024-09
New Economics Papers: this item is included in nep-agr, nep-cis and nep-mac
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