Combining p-values via averaging

V Vovk, R Wang - Biometrika, 2020 - academic.oup.com
This paper proposes general methods for the problem of multiple testing of a single
hypothesis, with a standard goal of combining a number of-values without making any …

Hypothesis testing with e-values

A Ramdas, R Wang - arxiv preprint arxiv:2410.23614, 2024 - arxiv.org
This book is written to offer a humble, but unified, treatment of e-values in hypothesis testing.
The book is organized into three parts: Fundamental Concepts, Core Ideas, and Advanced …

Risk aggregation with dependence uncertainty

C Bernard, X Jiang, R Wang - Insurance: Mathematics and Economics, 2014 - Elsevier
Risk aggregation with dependence uncertainty refers to the sum of individual risks with
known marginal distributions and unspecified dependence structure. We introduce the …

Extremal dependence concepts

G Puccetti, R Wang - 2015 - projecteuclid.org
The probabilistic characterization of the relationship between two or more random variables
calls for a notion of dependence. Dependence modeling leads to mathematical and …

Admissible ways of merging p-values under arbitrary dependence

V Vovk, B Wang, R Wang - The Annals of Statistics, 2022 - projecteuclid.org
Admissible ways of merging p-values under arbitrary dependence Page 1 The Annals of Statistics
2022, Vol. 50, No. 1, 351–375 https://doi.org/10.1214/21-AOS2109 © Institute of Mathematical …

[HTML][HTML] Infinite-mean models in risk management: Discussions and recent advances

Y Chen, R Wang - Risk Sciences, 2024 - Elsevier
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 …

Worst-case range value-at-risk with partial information

L Li, H Shao, R Wang, J Yang - SIAM Journal on Financial Mathematics, 2018 - SIAM
In this paper, we study the worst-case scenarios of a general class of risk measures, the
range value-at-risk (RVaR), in single and aggregate risk models with given mean and …

Pairwise counter-monotonicity

JG Lauzier, L Lin, R Wang - Insurance: Mathematics and Economics, 2023 - Elsevier
We systematically study pairwise counter-monotonicity, an extremal notion of negative
dependence. A stochastic representation and an invariance property are established for this …

Risk sharing with Lambda value at risk

P Liu - Mathematics of Operations Research, 2025 - pubsonline.informs.org
In this paper, we study the risk-sharing problem among multiple agents using lambda value
at risk (Λ VaR) as their preferences via the tool of inf-convolution, where Λ VaR is an …

A new approach to assessing model risk in high dimensions

C Bernard, S Vanduffel - Journal of Banking & Finance, 2015 - Elsevier
A central problem for regulators and risk managers concerns the risk assessment of an
aggregate portfolio defined as the sum of d individual dependent risks X i. This problem is …