157 résultats pour « riskmanagement »

The Tensions of Cyber‑Resilience: From Sensemaking to Practice

"We apply Weick’s (1995) sensemaking framework to examine four foundational tensions of cyber-resilience: a definitional tension, an environmental tension, an internal tension, and a regulatory tension. We then document how these tensions are embedded in cyber-resilience practices at the preparatory, response and adaptive stages. We rely on qualitative data from a sample of 58 cybersecurity professionals in the financial sector..."

A stochastic volatility model for the valuation of temperature derivatives

"This model allows to be more conservative regarding extreme events while keeping tractability. We give a method based on Conditional Least Squares to estimate the parameters on daily data and estimate our model on eight major European cities... This new model allows to better assess the risk related to temperature volatility."

Quasi‑convexity in mixtures for generalized rank‑dependent functions

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"Quasi-convexity in probabilistic mixtures is a common and useful property in decision analysis. We study a general class of non-monotone mappings, called the generalized rank-dependent functions, which include the preference models of expected utilities, dual utilities, and rank-dependent utilities as special cases, as well as signed Choquet integrals used in risk management."

Loss Aversion Leads to Fatalistic Management of Interdependent Risk

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"The higher the degree of loss aversion, the lower is the likelihood to invest in other risk management activities is when self-protection is implemented. Our results help to explain the lack of demand for catastrophe insurance or cyber risk insurance and have important implications for corporate risk management and public policy."