Search Results for author: Liyuan Lin

Found 9 papers, 0 papers with code

The checkerboard copula and dependence concepts

no code implementations23 Apr 2024 Liyuan Lin, Ruodu Wang, Ruixun Zhang, Chaoyi Zhao

We study the problem of choosing the copula when the marginal distributions of a random vector are not all continuous.

Negatively dependent optimal risk sharing

no code implementations6 Jan 2024 Jean-Gabriel Lauzier, Liyuan Lin, Ruodu Wang

We analyze the problem of optimally sharing risk using allocations that exhibit counter-monotonicity, the most extreme form of negative dependence.

The optimal reinsurance strategy with price-competition between two reinsurers

no code implementations30 Apr 2023 Liyuan Lin, Fangda Liu, Jingzhen Liu abd Luyang Yu

Our numerical analysis verifies the impact of claim size, risk aversion and interest rates of the insurer and reinsurers on equilibrium reinsurance strategy and premium strategy, which can help to understand competition in the reinsurance market

Vocal Bursts Valence Prediction

Pairwise counter-monotonicity

no code implementations22 Feb 2023 Jean-Gabriel Lauzier, Liyuan Lin, Ruodu Wang

We systematically study pairwise counter-monotonicity, an extremal notion of negative dependence.

Risk sharing, measuring variability, and distortion riskmetrics

no code implementations8 Feb 2023 Jean-Gabriel Lauzier, Liyuan Lin, Ruodu Wang

We address the problem of sharing risk among agents with preferences modelled by a general class of comonotonic additive and law-based functionals that need not be either monotone or convex.

Portfolio Optimization

Diversification quotients based on VaR and ES

no code implementations9 Jan 2023 Xia Han, Liyuan Lin, Ruodu Wang

The diversification quotient (DQ) is recently introduced for quantifying the degree of diversification of a stochastic portfolio model.

Portfolio Optimization

Diversification quotients: Quantifying diversification via risk measures

no code implementations28 Jun 2022 Xia Han, Liyuan Lin, Ruodu Wang

We establish the first axiomatic theory for diversification indices using six intuitive axioms: non-negativity, location invariance, scale invariance, rationality, normalization, and continuity.

Portfolio Optimization

Calibrating distribution models from PELVE

no code implementations19 Apr 2022 Hirbod Assa, Liyuan Lin, Ruodu Wang

It is straightforward to compute the value of PELVE for a given distribution model.

Risk Aggregation under Dependence Uncertainty and an Order Constraint

no code implementations15 Apr 2021 Yuyu Chen, Liyuan Lin, Ruodu Wang

We study the aggregation of two risks when the marginal distributions are known and the dependence structure is unknown, under the additional constraint that one risk is smaller than or equal to the other.

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