Infinite-mean models in risk management: Discussions and recent advances
2025
In statistical analysis, many classic results require the assumption that models have finite mean or variance, including the most standard versions of the laws of large numbers and the central limit...
High price impact trade identification and its implication for volatility and price efficiency
2025
We include limit order book (LOB) matchedness as a new trade attribute to identify high price impact trades (HPITs). HPITs are trades associated with large price changes relative to their volume proportion....
Equal compensations under actuarially fair contributions in endowment contingency funds
2025
This paper considers risk-sharing schemes, aiming to demonstrate that it is possible to enforce equal compensations by charging actuarially fair contributions. Specifically, consider a group of individuals...
Artificial intelligence and uncertainty
2025
Artificial intelligence (AI) has both capabilities and limitations in managing uncertainty, particularly in handling average cases versus extreme outliers. AI excels at analyzing large datasets and...
Valuing mortality risk reductions in the time of COVID-19: A stated-preference analysis
2025
Lack of high-quality value per statistical life (VSL) studies in low- and middle-income countries have been recognized by scholars and analysts in the benefit-cost analysis field for decades. However,...
Strategic timing of corporate social responsibility investments under reputational risk
2025
We analyze a company’s corporate social responsibility (CSR) investments from a real option perspective to determine the value of the CSR investments and the optimal time to invest in CSR, taking into...
Cyber risk loss distribution for various scale drone delivery systems
2025
Thousands of commercial drone deliveries are occurring daily worldwide, mainly in the U.S. and China. Global corporate efforts such as the recent Amazon trials at College Station, TX, authorized by...
Resource allocation in multi-layer, continuous defense, security games versus strategic attackers
2025
When defending soft targets, such as airports, subway stations, sports venues and houses of worship, it is critical to optimally allocate defensive resources across the different security layers of...
From risk to resilience and sustainability: Addressing urban flash floods and waterlogging
2025
Urban flash floods, which occur rapidly in densely populated areas, pose significant risks to infrastructure, public safety, and sustainable development. These events, along with the resulting waterlogging,...
Firm-level climate risk assessment: Recent progress and future research agenda
2025
As climate change intensifies, firms face increasing exposure to multidimensional risks. This discussion presents a comprehensive review of firm-level climate risk assessment, categorizing risks into...
Towards fake profiles identification in social networks: A proposal with energy-based PageRank algorithm involving entropy and domain authority
2025
Social networks (SNs) are physical and or, virtual social structures where several users interact with each other, and by nature, SNs are very dynamic. The engagement of millions of people in different...
How do insurance companies manage reserves? Evidence from reserve errors across lines of business and accident years
2025
We study the question of how insurance companies manage reserves. Specifically, we investigate how managerial incentives affect insurers’ reserving practice across lines of business (LOBs) and accident...
Risk theory: From perception to cognition
2025
This paper proposes a generic risk theory. The risk theory starts with a basic observation that risk is the product of a specific human cognitive process. This cognitive process is responsible for the...
A versatility measure for parametric risk models
2025
Parametric statistical methods play a central role in analyzing risk through its underlying frequency and severity components. Given the wide availability of numerical algorithms and high-speed computers,...
A news monitoring system to detect relevant news for the anti-money laundering supervision of financial institutions
2025
Investigative journalism plays a pivotal role in uncovering financial misconduct, yet its integration into anti-money laundering (AML) supervision remains underexplored. This paper presents a data-driven...
Reducing adverse selection by taking advantage of ML: Evidence from China’s internet auto insurance
2025
Compared to traditional auto insurance, the price of internet auto insurance is usually lower, although traditional auto insurance and internet auto insurance can provide the same coverage. After confirming...
Balancing security and inconvenience: Perceptions of countermeasures in U.S. commercial facilities
2025
This study focuses on patrons' perceptions of countermeasures at public assembly and retail venues within the commercial facilities sector of critical infrastructure and the implications of these perceptions...
Simplified vine copula models: State of science and affairs
2025
Vine copula models have become highly popular practical tools for modeling multivariate dependencies. To maintain tractability, a commonly employed simplifying assumption is that conditional copulas...
Keeping risk alive
2025
Risk premia in markets rise with the degree of discontinuity in price motion. This discontinuity is measured by the scale and speed coefficients of price movements embedded in the bilateral gamma process,...
Multiple climate ambiguities and optimal carbon emission abatement decisions
2025
This paper develops a climate-economy model to study how ambiguity about key climate and economic factors affects carbon abatement decisions. We focus on three sources of ambiguity: climate sensitivity...
China’s economic and financial risks and the prospect of reforms: An interview with David Daokui Li
2025
In this interview, David Daokui Li, a prominent economist and professor at Tsinghua University, discusses the critical economic and financial risks facing China and proposes reforms to address them....
What are risk sciences?
2025
This article articulates a conceptual framework for risk sciences—an emerging interdisciplinary field dedicated to the study of risk and uncertainty across natural, social, economic, management, technological...