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econ.TH2025
Risk-insurance parity
Benjamin Côté, Ruodu Wang, Qinyu Wu
Risk aversion and insurance are two prominent and interconnected concepts in economics and finance. To explore their fundamental connection, we introduce risk-insurance parity, whi…
math.ST2025
Tree-structured Ising models under mean parameterization
Benjamin Côté, Hélène Cossette, Etienne Marceau
In the risk modeling literature, the Ising model has emerged as a valuable framework for dependent Bernoulli random variables, as its underlying graphical structure captures comple…
math.PR2025
On convex order and supermodular order without finite mean
Benjamin Côté, Ruodu Wang
Many results on the convex order in the literature were stated for random variables with finite mean. For instance, a fundamental result in dependence modeling is that the sum of a…