Reserving in insurance: From collective methods to individual ones

M. Denuit, PhD & J. Trufin, PhD

Description

Do you want to uncover the subtleties behind the well-known methods you regularly use to compute your company’s reserves? Curious about the Chain Ladder or GLMs you’ve always heard about but never explored in depth? Or perhaps you’re looking to deepen your knowledge of individual reserving, especially multistate models?
If so, this complete reserving training is made for you.

Developed by actuaries, for actuaries, this course takes into account the unique characteristics of insurance data, rather than reusing standard techniques borrowed from other domains.

The training progresses step by step, revisiting the fundamental statistical concepts behind classic reserving methods such as the Chain Ladder, Mack’s model, and GLMs. It then transitions into individual reserving, beginning with collective loss reserving and culminating in the individual multistate model.

The strengths and limitations of each method are highlighted through a series of case studies using real insurance datasets.

Sessions are designed to be interactive, alternating between methodological explanations and live case studies.

All documentation, datasets, and R code will be provided through a dedicated support platform. Installing the required R packages prior to the session is necessary.

Program

Module 1 : Introduction to reserving:

  • Fundamental regulations about reserving
  • Basics about classical collective reserving
  • Chain Ladder and Mack’s models: their applications and limitations
  • Links to the over dispersed Poisson model
 

Module 2 : More complex approaches to reserving

  • Introduction to the GLM
  • Application of the GLM to reserving:
    • Count and severity approach
    • Lasso algorithm for the choice of variables
    • Bootstrapping method
  • Limits of aggregate methods
  • Introduction to a hybrid model
    • The collective loss reserving
 

Module 3 : Micro reserving

  • Introduction to micro reserving and the need of it
  • Focus on the multistate individual reserving
    • Detailed presentation of the principle
    • Introduction to the analytical approach
    • Computation of the reserve via simulations
    • Computation of the reserve via an analytical method
  • One-year risk in the individual framework

Speakers

Michel Denuit

Michel Denuit

Scientific Advisor, Detralytics
Professor, UCLouvain

Julien

Julien Trufin

Scientific Advisor, Detralytics
Professor, ULB

Date : On-Demand

Duration : 16h

Accreditation : 16CPD | 96PPC

Level : All

Acquired skills

After completion of the training session, participants will have acquired a general knowledge of reserving in insurance. They will be able to select the appropriate approach for their own data, run the R code and interpret the results.

About our Speakers

Michel Denuit

Michel is an Honorary Scientific Advisor at Detralytics, as well as a professor in actuarial science at the Université Catholique de Louvain. He has international experience as a visiting professor, and has promoted many projects in collaboration with the industry. At Detralytics, Michel coaches young talents, provides cutting-edge training, fosters innovation and oversees R&D projects.

Julien Trufin

Julien is a Scientific Advisor at Detralytics, as well as a professor in Actuarial Science at the department of mathematics of the Université Libre de Bruxelles. Julien has experience as a consultant and a strong academic background developed at prominent institutions, including Université Laval (Canada), UCL, and ULB (Belgium). At Detralytics, Julien coaches young talents, provide cutting-edge training, fosters innovation and oversees R&D projects.