Log-normal or over-dispersed poisson?
Although both over-dispersed Poisson and log-normal chain-ladder models are popular in claim reserving, it is not obvious when to choose which model. Yet, the two models are obviously different. While the over-dispersed Poisson model imposes the variance to mean ratio to be common across the array,...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018
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| Online Access: | View Fulltext in Publisher |