Quantifying the Role of Occurrence Losses in Catastrophe Excess of Loss Reinsurance Pricing

The aim of this paper is to merge order statistics with natural catastrophe reinsurance pricing to develop new theoretical and practical insights relevant to market practice and model development. We present a novel framework to quantify the role that occurrence losses (order statistics) play in pri...

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Main Authors: Shree Khare, Keven Roy
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Risks
Subjects:
Online Access:https://www.mdpi.com/2227-9091/9/3/52
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author Shree Khare
Keven Roy
author_facet Shree Khare
Keven Roy
author_sort Shree Khare
collection DOAJ
description The aim of this paper is to merge order statistics with natural catastrophe reinsurance pricing to develop new theoretical and practical insights relevant to market practice and model development. We present a novel framework to quantify the role that occurrence losses (order statistics) play in pricing of catastrophe excess of loss (catXL) contracts. Our framework enables one to analytically quantify the contribution of a given occurrence loss to the mean and covariance structure, before and after the application of a catXL contract. We demonstrate the utility of our framework with an application to idealized catastrophe models for a multi-peril and a hurricane-only case. For the multi-peril case, we show precisely how contributions to so-called lower layers are dominated by high frequency perils, whereas higher layers are dominated by low-frequency high severity perils. Our framework enables market practitioners and model developers to assess and understand the impact of altered model assumptions on the role of occurrence losses in catXL pricing.
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spelling doaj.art-b60f0db28e774d6997acd5cc168c5b062023-11-21T10:16:09ZengMDPI AGRisks2227-90912021-03-01935210.3390/risks9030052Quantifying the Role of Occurrence Losses in Catastrophe Excess of Loss Reinsurance PricingShree Khare0Keven Roy1Risk Management Solutions, The Minster Building, 21 Mincing Lane, London EC3R 7AG, UKHiscox, 1 Great St. Helen’s, London EC3A 6HX, UKThe aim of this paper is to merge order statistics with natural catastrophe reinsurance pricing to develop new theoretical and practical insights relevant to market practice and model development. We present a novel framework to quantify the role that occurrence losses (order statistics) play in pricing of catastrophe excess of loss (catXL) contracts. Our framework enables one to analytically quantify the contribution of a given occurrence loss to the mean and covariance structure, before and after the application of a catXL contract. We demonstrate the utility of our framework with an application to idealized catastrophe models for a multi-peril and a hurricane-only case. For the multi-peril case, we show precisely how contributions to so-called lower layers are dominated by high frequency perils, whereas higher layers are dominated by low-frequency high severity perils. Our framework enables market practitioners and model developers to assess and understand the impact of altered model assumptions on the role of occurrence losses in catXL pricing.https://www.mdpi.com/2227-9091/9/3/52occurrence lossescatXL pricingorder statisticscatastrophe risk modeling
spellingShingle Shree Khare
Keven Roy
Quantifying the Role of Occurrence Losses in Catastrophe Excess of Loss Reinsurance Pricing
Risks
occurrence losses
catXL pricing
order statistics
catastrophe risk modeling
title Quantifying the Role of Occurrence Losses in Catastrophe Excess of Loss Reinsurance Pricing
title_full Quantifying the Role of Occurrence Losses in Catastrophe Excess of Loss Reinsurance Pricing
title_fullStr Quantifying the Role of Occurrence Losses in Catastrophe Excess of Loss Reinsurance Pricing
title_full_unstemmed Quantifying the Role of Occurrence Losses in Catastrophe Excess of Loss Reinsurance Pricing
title_short Quantifying the Role of Occurrence Losses in Catastrophe Excess of Loss Reinsurance Pricing
title_sort quantifying the role of occurrence losses in catastrophe excess of loss reinsurance pricing
topic occurrence losses
catXL pricing
order statistics
catastrophe risk modeling
url https://www.mdpi.com/2227-9091/9/3/52
work_keys_str_mv AT shreekhare quantifyingtheroleofoccurrencelossesincatastropheexcessoflossreinsurancepricing
AT kevenroy quantifyingtheroleofoccurrencelossesincatastropheexcessoflossreinsurancepricing