📈 economics

Quantile Time-Frequency Higher-Moment Risk Spillovers and Multilayer Networks: Bridging Climate Risks to Carbon, Energy, and Metals Markets

This paper employs higher-moment risk analysis and multilayer network modeling to reveal that while climate risks generally act as spillover receivers in carbon, energy, and metals markets, they become significant long-term transmitters during market downturns, with distinct short-term and long-term dynamics across return, volatility, skewness, and kurtosis dimensions.

Yuqin Zhou, Zixuan Luo, Shan Wu2026-07-14
📈 economics

Does Transport Infrastructure Quality Really Affect Intra-regional Trade in Sub-Saharan Africa?

Using a dynamic spatial model of 20 Sub-Saharan African countries from 2006 to 2019, this study demonstrates that improving transport infrastructure quality significantly boosts both domestic and neighboring intra-regional trade in the short and long term, prompting a recommendation for supranational institutions to manage infrastructure investment.

Noé Sougrinooma Birba, Somlanare Romuald KINDA, Kirsi ZONGO2026-07-13✓ Author reviewed
📈 economics

Integrating Machine-Learned ESG Ratings into Hierarchical Risk Parity: Evidence from Classification Benchmarking and Sustainable Portfolio Optimization

This study demonstrates that integrating a machine-learning-optimized Logistic Regression classifier for ESG ratings into the Hierarchical Risk Parity framework enables "soft" portfolio integration that significantly improves ESG scores while preserving risk-adjusted performance, in contrast to "hard" exclusionary screening which drastically reduces diversification and returns.

Chaima Ben Hassine, Heni Boubaker2026-07-13
📈 economics

Sustainable Adoption of Cloud Computing for Small and Medium Enterprises in Sub- Saharan Africa: A Bibliometric Analysis

This bibliometric and narrative synthesis study reveals that while cloud computing offers significant cost and scalability benefits for small and medium enterprises in sub-Saharan Africa, realizing its full sustainable potential requires overcoming critical infrastructure and regulatory barriers through co-designed digital and environmental policies.

Zibusisozenkosi Dube¹, Shadreck Nhorito2026-07-13
📈 economics

The Mediating role of Digital Financial Inclusion on the relationship between Green Finance and Carbon Emission in Africa

This study analyzes data from 48 African countries using Partial Least Squares Structural Equation Modeling to demonstrate that digital financial inclusion partially mediates the relationship between green finance and reduced carbon emissions, thereby amplifying the environmental benefits of green finance through technological innovation.

Amina Abdallah, Joseph Tezaamaabo, Ezekiel Davies2026-07-13
📈 economics

The Impact of Post-2008 New-Generation Fiscal Rules on the Current Account Balance: A Generalized Synthetic Control Approach(GSCM)

Using a Generalized Synthetic Control Method on data from 111 countries (2000–2019), this study finds that post-2008 adoption of Balanced Budget and Debt fiscal rules significantly improves current account balances by 4.7% and 3.4% of GDP respectively, thereby confirming the Twin Deficits hypothesis and rejecting Ricardian equivalence.

Mohamadamin Shojaei2026-07-13
📈 economics

Crisis-Aware Variational Autoencoders for Stress Testing Volatility Surfaces

This paper introduces a Crisis-Aware Variational Autoencoder that generates internally consistent, arbitrage-free stressed volatility surfaces by combining crisis conditioning, heavy-tailed priors, and soft constraints, demonstrating superior performance over traditional benchmarks in pricing exotic derivatives under various crisis regimes while highlighting the limitations of parametric approximations.

Bienvenue Feugang Nteumagne, Hermann Azemtsa Donfack, Celestin Wafo Soh2026-07-13