most-favored-nations clause
n.— «Both the Allison and First Data offerings included what amounts to a buyer’s protection plan against further price cuts on the loans. Under what is known as a most-favored-nations clause, if the banks sell a second slice of loans at a greater discount this year, they will refund the difference to buyers of the first round of loans.» —“Banks Try Easing Into a $26 Billion Debt Sale” by Michael J. de la Merced New York Times Sept. 15, 2007. (source: Double-Tongued Dictionary)