Category: Loss Development and Trend

Reserve Analysis and the ABC's of IBNR

In the SIGMA Tech Talk titled “Understanding Loss Development Factors,” we introduced IBNR losses as those losses which occur during a loss period but are not reported until a later date. The definition of IBNR also typically includes development of known claims. In this article, we look further at the significance and calculation of IBNR […]

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Understanding Loss Development Factors

Whether you are a broker, CFO, or risk manager, you have probably heard the terms loss development triangle, loss development factor, and IBNR (incurred but not reported losses). These are often included in the first analytical step of an actuarial analysis. Yet a survey of insurance professionals would likely result in a long list of […]

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What is IBNR?

An underwriter once emailed me declaring that the IB and R load was too high on a particular account. I never had the heart to ask him what the letters I, B, or R signified in that statement, but obviously that must be what IBNR sounds like when pronounced too fast or with an accent. […]

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Common Mistakes Using Loss Development Factors

The narrative support to an actuarial report or analysis normally contains a summary of loss development and loss development factors similar to this: The ultimate cost of claims reported in a specific time period is usually not known until several years after the close of that period. Therefore, loss development factors are used to project […]

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