The claim appears to be an urban myth.
The claim appears to be an urban myth.
This was brought up in the discussion on the answer where repeated requests for sources were made.
The blog post 6 Reasons Why Accepting A Counter Offer Is Madness (linked in that discussion) investigates the claim.
Despite considerable ferreting around the internet, I can’t find the source of that fact anywhere. I suspect it might be the result of a snap poll around a recruitment office somewhere, circa 2001, and it’s become accepted lore.