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Aggregation of dependent risks in mixtures of exponential distributions and extensions
The distribution of the sum of dependent risks is a crucial aspect in actuarial sciences, risk
management and in many branches of applied probability. In this paper, we obtain analytic …
management and in many branches of applied probability. In this paper, we obtain analytic …
Copula representations for the sum of dependent risks: models and comparisons
The study of the distributions of sums of dependent risks is a key topic in actuarial sciences,
risk management, reliability and in many branches of applied and theoretical probability …
risk management, reliability and in many branches of applied and theoretical probability …
On the bivariate Sarmanov distribution and copula. An application on insurance data using truncated marginal distributi
The Sarmanov family of distributions can provide a good model for bivariate random
variables and it is used to model dependency in a multivariate setting with given marginals …
variables and it is used to model dependency in a multivariate setting with given marginals …
Capital allocation for Sarmanov's class of distributions
R Vernic - Methodology and Computing in Applied Probability, 2017 - Springer
This paper is a follow-up of the study realized by Vernic (2014) on the aggregation of
dependent random variables joined by Sarmanov's multivariate distribution, with accent on …
dependent random variables joined by Sarmanov's multivariate distribution, with accent on …
The loss given default of a low-default portfolio with weak contagion
L Wei, Z Yuan - Insurance: Mathematics and Economics, 2016 - Elsevier
In this paper we study the loss given default (LGD) of a low default portfolio (LDP), assuming
that there is weak credit contagion among the obligors. We characterize the credit contagion …
that there is weak credit contagion among the obligors. We characterize the credit contagion …
On some multivariate Sarmanov mixed Erlang reinsurance risks: Aggregation and capital allocation
G Ratovomirija, M Tamraz, R Vernic - Insurance: Mathematics and …, 2017 - Elsevier
Following some recent works on risk aggregation and capital allocation for mixed Erlang
risks joined by Sarmanov's multivariate distribution, in this paper we present some closed …
risks joined by Sarmanov's multivariate distribution, in this paper we present some closed …
Conditional tail expectation of randomly weighted sums with heavy-tailed distributions
Y Yang, E Ignatavičiūtė, J Šiaulys - Statistics & Probability Letters, 2015 - Elsevier
We consider the tail behavior of the conditional tail expectation E (S n θ∣ S n θ> xq) when
q↑ 1. Here S n θ=∑ i= 1 n θ i X i and xq= VaR q (S n θ)= inf {y∈ R: P (S n θ⩽ y)⩾ q}. We are …
q↑ 1. Here S n θ=∑ i= 1 n θ i X i and xq= VaR q (S n θ)= inf {y∈ R: P (S n θ⩽ y)⩾ q}. We are …
On mixed Erlang reinsurance risk: aggregation, capital allocation and default risk
G Ratovomirija - European Actuarial Journal, 2016 - Springer
In this paper, we address the aggregation of dependent stop loss reinsurance risks where
the dependence among the ceding insurer (s) risks is governed by the Sarmanov …
the dependence among the ceding insurer (s) risks is governed by the Sarmanov …
On the evaluation of some multivariate compound distributions with Sarmanov's counting distribution
R Vernic - Insurance: Mathematics and Economics, 2018 - Elsevier
In this paper, we consider Sarmanov's multivariate discrete distribution as counting
distribution in two multivariate compound models: the first model assumes different types of …
distribution in two multivariate compound models: the first model assumes different types of …
Ruin under Light-Tailed or Moderately Heavy-Tailed Insurance Risks Interplayed with Financial Risks
Consider an insurer who makes risk-free or risky investments and hence is exposed to both
insurance and financial risks. We investigate the interplay of the two risks in causing ruin of …
insurance and financial risks. We investigate the interplay of the two risks in causing ruin of …