This particular mixed commitment can be called a combination of a fractional threat with a fractional promise. Row, in effect, “threatens” a relatively high probability of i in the event that II is chosen and “promises” it if I is chosen.

DEFINE: Defines the concept of a 'mixed commitment' as composed of a fractional threat plus a fractional promise across two alternative choices.

Thomas C. Schelling, The Strategy of Conflict, loc. 411