Pairwise counter‑monotonicity

Date : Tags : , ,
"We show that pairwise counter-monotonicity implies negative association, and it is equivalent to joint mix dependence if both are possible for the same marginal distributions. We find an intimate connection between pairwise counter-monotonicity and risk sharing problems for quantile agents."

Optimal Risk Management with Reinsurance and its Counterparty Risk Hedging

"... we revisit the study of an optimal risk management strategy for an insurer who wants to maximize the expected utility by purchasing reinsurance and managing reinsurance counterparty risk with a default-free hedging instrument, where the reinsurance premium is calculated by the expected value principle and the price of the hedging instrument equals to the expected payoff plus a proportional loading."

The Cybersecurity Obligations of States Perceived as Platforms

The study highlights that while modern states have developed concrete strategies to respond to potential threats, the resemblance of these strategies to one another could create unexpected challenges. The dynamic nature of the internet and the multitude of actors and sources of risk could put conventional wisdom to the test at a stage where the scope for response is limited. This highlights the need for states to continually adapt their strategies to address emerging risks and avoid relying solely on common knowledge or uniform thinking.

The Relationship between Climate Risk, Climate Policy Uncertainty, and Co2

"Shocks to disaster costs seem to decrease all type of emissions significantly and also increase renewable energy use significantly. The occurrence of natural disasters increases the political disagreement among U.S. politicians, as well as, the climate policy uncertainty, highlighting the need for efficient policymaking and regulations. "

Insurance Contracting with Adverse Selection and Moral Hazard

Date : Tags : , , , , , ,
"Our model yields richer separating Nash equilibria than pure moral hazard and pure adverse selection models, although separating Nash equilibria may not exist in some cases. It also retains some properties, for example, no full insurance and the positive correlation between insurance coverage and risk type, in those benchmark models. Our study on comparative statics indicates that, under some conditions and with some exceptions, the optimal indemnity and premium decrease with disutility from effort, increase with potential loss, and decrease with the initial wealth of the insured."

Risk Aggregation, Tail Risk, Correlation: Capital Allocation Efficiency and Regulator...

"... model uncertainty is a vital component of the current challenges in risk measurement, and therefore the regulator should design risk measures encouraging well-understood prudent decisions over (less understood) risky ones. From this perspective robust regulation should be a desirable goal. To achieve such an objective, simple – but not simpler – rules are needed."

Quantifying Uncertainty and Sensitivity in Climate Risk Assessments

"We present a novel approach to quantify the uncertainty and sensitivity of risk estimates, using the CLIMADA open-source climate risk assessment platform. This work builds upon a recently developed extension of CLIMADA, which uses statistical modelling techniques to better quantify climate model ensemble uncertainty. Here, we further analyse the propagation of hazard, exposure and vulnerability uncertainties by varying a number of input factors based on a discrete, scientifically justified set of options."