[HTML][HTML] Law-invariant return and star-shaped risk measures

RJA Laeven, ER Gianin, M Zullino - Insurance: Mathematics and …, 2024 - Elsevier
This paper presents novel characterization results for classes of law-invariant star-shaped
functionals. We begin by establishing characterizations for positively homogeneous and star …

On the richness of calibration

B Höltgen, RC Williamson - Proceedings of the 2023 ACM Conference …, 2023 - dl.acm.org
Probabilistic predictions can be evaluated through comparisons with observed label
frequencies, that is, through the lens of calibration. Recent scholarship on algorithmic …

Adjusted expected shortfall

M Burzoni, C Munari, R Wang - Journal of Banking & Finance, 2022 - Elsevier
We introduce and study the main properties of a class of convex risk measures that refine
Expected Shortfall by simultaneously controlling the expected losses associated with …

Law-invariant functionals that collapse to the mean: Beyond convexity

FB Liebrich, C Munari - Mathematics and Financial Economics, 2022 - Springer
We establish general “collapse to the mean” principles that provide conditions under which
a law-invariant functional reduces to an expectation. In the convex setting, we retrieve and …

[HTML][HTML] Law-invariant functionals that collapse to the mean

F Bellini, P Koch-Medina, C Munari… - Insurance: Mathematics …, 2021 - Elsevier
We discuss when law-invariant convex functionals “collapse to the mean”. More precisely,
we show that, in a large class of spaces of random variables and under mild semicontinuity …

Risk sharing under heterogeneous beliefs without convexity

FB Liebrich - Finance and Stochastics, 2024 - Springer
We consider the problem of finding (Pareto-) optimal allocations of risk among finitely many
agents. The associated individual risk measures are law-invariant, but with respect to agent …

Automatic Fatou property of law-invariant risk measures

S Chen, N Gao, DH Leung, L Li - Insurance: Mathematics and Economics, 2022 - Elsevier
In the paper we investigate automatic Fatou property of law-invariant risk measures on a
rearrangement-invariant function space X other than L∞. The main result is the following …

[HTML][HTML] Are reference measures of law-invariant functionals unique?

FB Liebrich - Insurance: Mathematics and Economics, 2024 - Elsevier
A functional defined on random variables f is law invariant with respect to a reference
probability if its value only depends on the distribution of its argument f under that measure …

Risk, utility and sensitivity to large losses

M Herdegen, N Khan, C Munari - arXiv preprint arXiv:2405.12154, 2024 - arxiv.org
Risk and utility functionals are fundamental building blocks in economics and finance. In this
paper we investigate under which conditions a risk or utility functional is sensitive to the …

Revisiting the Automatic Fatou Property of Law-Invariant Functionals

FB Liebrich, C Munari - SIAM Journal on Financial Mathematics, 2025 - SIAM
Short Communication: Revisiting the Automatic Fatou Property of Law-Invariant Functionals |
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