Economic indicators for automobile claim frequencies

Authors

  • Eva Boj Universidad de Barcelona
  • Anna Castañer Universidad de Barcelona
  • M. Mercè Claramunt Universidad de Barcelona
  • Teresa Costa Universidad de Barcelona
  • Oriol Roch Universidad de Barcelona

Abstract

This article examines the relationship between observed claim frequencies in the automobile insurance line and the evolution of selected economic magnitudes. From a variety of economic variables, we aim to identify the main factors affecting claim frequencies, while controlling for other legislative and demographic factors. Through a dynamic regression model, the analysis is conducted for three different categories of vehicles and for a variety of coverages. A comprehensive dataset from the main Spanish insurance companies is used to calibrate the model. The evidence might assist companies to improve ratemaking.

Keywords:

Categories of vehicles, dynamic regression, external predictors, motor insurance, time series