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Grains account for more than 50% of the calories consumed by people worldwide, and military conflicts, pandemics, climate change, and soaring grain prices all have vital impacts on food security. However, the complex price behavior of the…

Statistical Finance · Quantitative Finance 2023-10-30 Li Wang , Xing-Lu Gao , Wei-Xing Zhou

The current international landscape is turbulent and unstable, with frequent outbreaks of geopolitical conflicts worldwide. Geopolitical risk has emerged as a significant threat to regional and global peace, stability, and economic…

Econometrics · Economics 2025-10-29 Yun-Shi Dai , Peng-Fei Dai , Wei-Xing Zhou

The Grains and Oilseeds Index (GOI) and its sub-indices of wheat, maize, soyabeans, rice, and barley are daily price indexes reflect the price changes of the global spot markets of staple agro-food crops. In this paper, we carry out a…

General Economics · Economics 2024-08-07 Hao-Ran Liu , Ming-Xia Li , Wei-Xing Zhou

This paper combines the Copula-CoVaR approach with the ARMA-GARCH-skewed Student-t model to investigate the tail dependence structure and extreme risk spillover effects between the international agricultural futures and spot markets, taking…

General Economics · Economics 2023-10-30 Yun-Shi Dai , Peng-Fei Dai , Wei-Xing Zhou

Stable and efficient food markets are crucial for global food security, yet international staple food markets are increasingly exposed to complex risks, including intensified risk contagion and escalating external uncertainties. This paper…

Econometrics · Economics 2025-01-28 Yun-Shi Dai , Peng-Fei Dai , Stéphane Goutte , Duc Khuong Nguyen , Wei-Xing Zhou

Agricultural price volatility, driven by market dynamics and meteorological factors such as temperature and precipitation, poses challenges for sustainable finance, planning, and policy. This study analyzes the impact of climate on crop…

Ensuring food security is a critical global challenge, particularly for low-income countries where food prices impact the access to nutritious food. The volatility of global agricultural commodity (AC) prices exacerbates food insecurity,…

General Economics · Economics 2025-03-04 Rotem Zelingher

50 year-long time series from a Long Term Agronomic Experiment have been used to to investigate the effects of climate change on yields of Wheat and Maize. Trends and fluctuations, useful to estimate production forecasts and related risks…

Applications · Statistics 2020-02-18 Giuliano Vitali , Sergei Rogosin , Guido Baldoni

The financialization of agricultural commodities and its impact on food security has become an increasing concern. This study empirically investigates the role of financialization in global food markets and its policy implications for a…

General Economics · Economics 2025-02-11 Manogna R. L. , Nishil Kulkarni

The effects of weather on agriculture in recent years have become a major global concern. Hence, the need for an effective weather risk management tool (i.e., weather derivatives) that can hedge crop yields against weather uncertainties.…

Mathematical Finance · Quantitative Finance 2019-10-25 Samuel Asante Gyamerah , Philip Ngare , Dennis Ikpe

This study analyzes historical data from five agricultural commodities in the Chinese futures market to explore the correlation, cointegration, and Granger causality between Peanut futures and related futures. Multivariate linear regression…

Computational Finance · Quantitative Finance 2025-02-26 Suke Li

We investigate the extreme return connectedness between the food, fossil energy, and clean energy markets using the quantile connectedness approach, which combines the traditional spillover index with quantile regression. Our results show…

General Economics · Economics 2025-03-11 Ting Zhang , Hai-Chuan Xu , Wei-Xing Zhou

This study investigates quantile-based connectedness among BRICS and international grain futures around the Russia-Ukraine conflict and milestones of the Black Sea Grain Initiative. Using a dynamic quantile VAR combined with a…

Risk Management · Quantitative Finance 2025-09-01 Yan-Hong Yang , Ying-Hui Shao , Wei-Xing Zhou

Multifractal detrended cross-correlation methodology is described and applied to Foreign exchange (Forex) market time series. Fluctuations of high frequency exchange rates of eight major world currencies over 2010-2018 period are used to…

Statistical Finance · Quantitative Finance 2019-12-17 Robert Gębarowski , Paweł Oświęcimka , Marcin Wątorek , Stanisław Drożdż

Statistical and multiscaling characteristics of WTI Crude Oil prices expressed in US dollar in relation to the most traded currencies as well as to gold futures and to the E-mini S$\&$P500 futures prices on 5 min intra-day recordings in the…

Statistical Finance · Quantitative Finance 2019-06-24 Marcin Wątorek , Stanisław Drożdż , Paweł Oświȩcimka , Marek Stanuszek

International food trade is a growing complement to gaps in domestic food supply and demand, but it is vulnerable to disruptions due to some unforeseen shocks. This paper assembles the international crop trade networks using maize, rice,…

Physics and Society · Physics 2023-06-21 Yin-Ting Zhang , Wei-Xing Zhou

Agricultural products play a critical role in human development. With economic globalization and the financialization of agricultural products continuing to advance, the interconnections between different agricultural futures have become…

General Economics · Economics 2024-12-24 Han-Yu Zhu , Peng-Fei Dai , Wei-Xing Zhou

A simple analytical model of intergranular normal stresses is proposed for a general elastic polycrystalline material with arbitrary shaped and randomly oriented grains under uniform loading. The model provides algebraic expressions for the…

Materials Science · Physics 2023-04-21 Samir El Shawish , Timon Mede

This study investigates the relationship between the market volatility of the iShares Asia 50 ETF (AIA) and economic and market sentiment indicators from the United States, China, and globally during periods of economic uncertainty.…

Econometrics · Economics 2025-07-23 Bahram Adrangi , Arjun Chatrath , Saman Hatamerad , Kambiz Raffiee

Commodity futures constitute an attractive asset class for portfolio managers. Propelled by their low correlation with other assets, commodities begin gaining popularity among investors, as they allow to capture diversification benefits.…

Statistical Finance · Quantitative Finance 2023-04-13 M. Belén Arouxet , Aurelio F. Bariviera , Verónica Pastor , Victoria Vampa
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