Hello!

If you want to verify if the chain ladder method and its derivatives are suitable for your specific P/C-business, what would be the approach?

For the Mack model you have 3 different assumptions, which can be found on the first page of the linked document:

https://www.casact.org/education/clr...-MackModel.pdf

I am unsure how can I test these assumptions against real data. If you could refer me to further informations, I would be very grateful.

Best regards

Chris