Pricing Effectiveness and Regulation: An Examination of Premium Rating in Taiwan Automobile Insurance
This paper examines premium determination of voluntary automobile insurance policies and risk classification under Taiwan’s heavily regulated rating system. On the basis of a unique data set, we investigate the appropriateness of the official one-size-fits-all rating formula for insurers by calculating an actual premium, a pure premium in terms of incurred loss, and a loading factor to account for different insurance coverage types. Empirical evidence indicates that there are large discrepancies between average actual premiums and average pure premiums, requiring large loading factors. The official formula captures the regular loss pattern but not excess claims, due to biased claims’ behaviour. In addition, average loss ratios for all coverage types are closely correlated and profitability is high.
Volume (Year): 35 (2010)
Issue (Month): S1 (December)
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