3 papers
q-fin.RM2025
Higher-Order Ambiguity Attitudes
Mücahit Aygün, Roger J. A. Laeven, Mitja Stadje
We introduce a model-free preference under ambiguity, as a primitive trait of behavior, which we apply once as well as repeatedly. Its single and double application yield simple, e…
q-fin.RM2024
On Geometrically Convex Risk Measures
Mücahit Aygün, Fabio Bellini, Roger J. A. Laeven
Geometrically convex functions constitute an interesting class of functions obtained by replacing the arithmetic mean with the geometric mean in the definition of convexity. As rec…
q-fin.RM2023
Elicitability of Return Risk Measures
Mücahit Aygün, Fabio Bellini, Roger J. A. Laeven
Informally, a risk measure is said to be elicitable if there exists a suitable scoring function such that minimizing its expected value recovers the risk measure. In this paper, we…