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Claims inflation

Rise in claims costs over time, driven by economic inflation and evolving judicial and medical practices.

Definition

Warren Buffett was already writing about social inflation in his 1977 letter to Berkshire Hathaway shareholders: society and juries were broadening what an insurance policy covers, and claim costs were rising close to 1% a month. Claims inflation gathers everything that pushes up the unit cost of a claim over time: economic inflation (materials, parts, labor), medical inflation (care, rehabilitation), judicial or social inflation, and regulatory change. In property and casualty, it routinely outruns the price index. In bodily injury liability, judges are more generous than the CPI would suggest. It is a first-order parameter of prospective pricing and of as-if restating of historical data.

Its 6 cross-references, woven across the glossary's 18 categories
Claims inflation: Actuarial science glossary illustration, AlgoPolis
Example

Textbook case: the average cost of a motor bodily injury claim rises 7% a year for four years, while the price index rises 3.5% a year. Claims inflation runs 3.5 points a year above general inflation, and pricing that restated history on the CPI would underestimate the coming year's losses.

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Also known as

claims inflation, social inflation, loss cost trend

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