Alternative to Tweedie in Pure Premium GLM

Abstract

The Tweedie distribution provides a variance structure that is widely used in GLM for pure premium ratemaking. This essay suggests the quasi-Negative binominal (QNB) as an alternative. Both can be interpreted as collective risk models but the QNB has a variance structure that is more commonly used in other actuarial applications.

Volume
Winter
Year
2022
Description
The Tweedie distribution provides a variance structure that is widely used in GLM for pure premium ratemaking. This essay suggests the quasi-Negative binominal (QNB) as an alternative. Both can be interpreted as collective risk models but the QNB has a variance structure that is more commonly used in other actuarial applications.
Publications
Casualty Actuarial Society E-Forum
Authors
David R Clark
Formerly on syllabus
Off