On: Why do 70% of families lose their wealth in the 2n...

[iso1210]

They seem to be commonly quoted, without sources.

I found this

"Approximately 70% of second-generation family firm successors are likely to close the family firm post succession due to succession process-related issues"

in an abstract of a paper

https://scholarworks.waldenu.edu/dissertations/10669/

But nothing close to confirming the claim