Showing 1 - 10 of 26
A probabilistic framework is introduced that represents stylized banking networks and aims to predict the size of contagion events. In contrast to previous work on random financial networks, which assumes independent connections between banks, the possibility of disassortative edge probabilities...
Persistent link: https://www.econbiz.de/10009325489
We extend the now classic structural credit modeling approach of Black and Cox to a class of "two-factor" models that unify equity securities such as options written on the stock price, and credit products like bonds and credit default swaps. In our approach, the two sides of the stylized...
Persistent link: https://www.econbiz.de/10009353640
Power network models often incorporate risks from extreme weather events to inform public policy but lack consideration of emerging risks such as cyberattacks. This is due to the increased risk of cyberattacks being difficult to model. In this work, we propose a stochastic approach to...
Persistent link: https://www.econbiz.de/10014076396
Cyber risk has emerged as a significant threat to businesses that have increasingly relied on new and existing information technologies (IT). Across various businesses in different industries and sectors, a distinct pattern of IT network architectures, such as the client-server network...
Persistent link: https://www.econbiz.de/10014082681
Networks like those of healthcare infrastructure have been a primary target of cyberattacks for over a decade. From just a single cyberattack, a healthcare facility would expect to see millions of dollars in losses from legal fines, business interruption, and malpractice lawsuits. As more...
Persistent link: https://www.econbiz.de/10014085172
The majority of work in mortality modeling involves factor-based approaches, with little use of information on the determinants and interpretable risk factors of mortality. At the same time, in the demographic community, there has been a lack of research attention towards the study of mortality...
Persistent link: https://www.econbiz.de/10014103582
We propose a new overarching interpretation of multidimensional information flows and their relation to market movements. The new conceptualization hinges on results of two distinct mathematical theories, Lévy processes and marked Poisson processes, bridged in Jevtić et al. (2016) and applied...
Persistent link: https://www.econbiz.de/10012966769
The paper describes a model that evaluates the solvency of a portfolio of assets and liabilities of an insurer subject to longevity risk and financial risks. Liabilities are evaluated at fair-value. Interest-rate risk can affect both assets and liabilities. Longevity risk is described via a...
Persistent link: https://www.econbiz.de/10013026606
In this paper, we propose two important extensions to cluster-weighted models (CWMs). First, we extend CWMs to have generalized cluster-weighted models (GCWMs) by allowing modeling of non-Gaussian distribution of the continuous covariates, as they frequently occur in insurance practice....
Persistent link: https://www.econbiz.de/10012906398
We propose a supervised learning approach to statistically quantify the magnitude of extreme events on vulnerable communities using publicly available panel data directly reflective of the different dimensions and manifestations of social suffering. The manifestations along these dimensions...
Persistent link: https://www.econbiz.de/10013220223