754 résultats pour « Autre »

Worst‑Case Reinsurance Strategy with Likelihood Ratio Uncertainty

The study delves into optimizing reinsurance amidst uncertainty, aiming to minimize insurer's worst-case loss. It establishes a connection between optimal strategies under a reference measure and those in worst-case scenarios, applicable to tail risk quantification. Conditions for common optimal solutions are provided, with applications to expectile risk measures explored. Cooperative and non-cooperative models are compared.

QFNN‑FFD: Quantum Federated Neural Network for Financial Fraud Detection

“Our findings reveal that the QFNN-FFD framework, supported by a robust computational infrastructure and optimized through sophisticated preprocessing techniques, can effectively identify fraudulent transactions with high precision. Its resilience against various quantum noise models is particularly noteworthy, indicating its suitability for real-world application in the near-term QC landscape.”

Risk exchange under infinite‑mean Pareto models

The study explores optimal decision-making for agents minimizing risks with extremely heavy-tailed, possibly dependent losses. Focused on super-Pareto distributions, including heavy-tailed Pareto, it finds non-diversification preferred with well-defined risk measures. Equilibrium analysis in risk exchange markets indicates agents with such losses avoid risk sharing. Empirical data confirms real-world heavy-tailed distributions.

Climate transition risk and the role of bank capital requirements

“Introducing carbon taxes to reduce carbon emissions from fossil energy induces risk spillovers into the banking sector. Sectoral capital requirements can effectively address risks from energy-related exposures, benefiting household welfare and indirectly facilitating capital reallocation.”

Flood Insurance Purchasing Behavior in Two Gulf Coast Communities

“We determined that vulnerable residents who are at high risk for flood hazards with low financial resiliency most need flood insurance but are least likely to own it. In addition, residents who voluntarily own flood insurance are most influenced by the cost of coverage and do not generally apply perceptions of coastal hazard risk when making decisions to purchase flood insurance.”