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White paper

Individual claim reserving: A complementary approach aggregated methods

29 February 2024

More individual claim reserving models have been developed in recent decades, and the availability of increasingly detailed claims data allows for a fresh look at reserving. Yet is using individual losses more efficient than aggregate methods? We conducted a study that highlights the benefits of using line-by-line claims data and compares individual reserving methods with conventional aggregate methods. In this white paper, we discuss: 

  • Different types of individual claim reserving models
  • The analysis of a line-by-line database for providing guidance to claims handlers
  • Modelling framework and calibration
  • Results and comparison with aggregated standard methods
  • Flexibility of individual claim reserving models

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