Fluctuations in economic policy often create ripple effects that can significantly impact commodity prices, including those of essential food items, with potential consequences for food security. The five emerging nations outlined as BRICS (Brazil, Russia, India, China, and South Africa) have most recently extended by including four new members (Egypt, Ethiopia, Iran, and the UAE) on January 1, 2024. Additionally, Argentina and Saudi Arabia are anticipated to join the group soon. This enlargement will alter the geopolitical scenario, potentially fostering fresh collaboration and competition dynamics. This expansion will reshape the geopolitical landscape, possibly leading to new cooperation and competition dynamics. The core objective of the present work is to measure how economic policy uncertainty asymmetrically influences food prices in the expanded BRICS countries. Previous investigations have primarily relied on panel data methods, often overlooking heterogeneities in the policy uncertainty-food prices nexus across different countries. Conversely, this research applies the Quantile-on-Quantile method, which permits a more exact examination, providing a thorough worldwide overview and specific insights tailored to each country. The results indicate a significant increase in food prices due to economic policy uncertainty throughout different quantile ranges in the chosen economies. These outcomes accentuate the essentiality for policymakers to execute all-inclusive appraisals and effectively manage approaches connected to economic policy uncertainty and food inflation.
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http://dx.doi.org/10.1177/03795721241301190 | DOI Listing |
Hum Vaccin Immunother
December 2025
National Influenza Centre, Edificio Rondilla, Hospital Clínico Universitario de Valladolid, Valladolid, Spain.
Influenza accounts for 30% of the total morbidity and mortality in the European Union. However, the specific burden in different European countries is largely unknown, and more research is needed to ascertain the reality of this disease. In this retrospective study, we analyzed the burdens of hospitalization, intensive care unit (ICU) admission and in-hospital mortality in Spain over five seasons (2015-2020) via publicly available Minimum Basic Datasets (MDBS).
View Article and Find Full Text PDFChaos
January 2025
Department of Applied Mathematics, College of Applied Sciences, Kyung Hee University, Yongin 17104, Republic of Korea.
Investment in resources is essential for facilitating information dissemination in real-world contexts, and comprehending the influence of resource allocation on information dissemination is, thus, crucial for the efficacy of collaborative networks. Nonetheless, current studies on information dissemination frequently fail to clarify the complex interplay between information distribution and resources in network contexts. In this work, we establish a resource-based information dissemination model to identify the complex interplay by examining the propagation threshold and equilibriums.
View Article and Find Full Text PDFChaos
January 2025
School of Statistics and Mathematics, Yunnan University of Finance and Economics, Kunming 650221, China.
Generosity through donation plays a crucial role in reducing inequality and influencing human behavior. However, previous research on donation has overlooked individuals' acceptance of the extent of inequality, which acts as a trigger for donation. To address this gap, this paper systematically explores the impact of donation based on inequality tolerance on the evolution of cooperation in spatial public goods game.
View Article and Find Full Text PDFChaos
January 2025
Centre for Complex Systems, School of Mathematical Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, United Kingdom.
Since groundbreaking works in the 1980s it is well-known that simple deterministic dynamical systems can display intermittent dynamics and weak chaos leading to anomalous diffusion. A paradigmatic example is the Pomeau-Manneville (PM) map which, suitably lifted onto the whole real line, was shown to generate superdiffusion that can be reproduced by stochastic Lévy walks (LWs). Here, we report that this matching only holds for parameter values of the PM map that are of Lebesgue measure zero in its two-dimensional parameter space.
View Article and Find Full Text PDFJ Med Internet Res
January 2025
Unitat de Recerca i Innovació, Gerència d'Atenció Primària i a la Comunitat de la Catalunya Central, Institut Català de la Salut, Sant Fruitós de Bages, Spain.
Background: The COVID-19 pandemic reshaped social dynamics, fostering reliance on social media for information, connection, and collective sense-making. Understanding how citizens navigate a global health crisis in varying cultural and economic contexts is crucial for effective crisis communication.
Objective: This study examines the evolution of citizen collective sense-making during the COVID-19 pandemic by analyzing social media discourse across Italy, the United Kingdom, and Egypt, representing diverse economic and cultural contexts.
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