In the two-thirds game, in which you choose a number between 1 and 100 that is two-thirds of the average chosen by the group, the rollback strategy is to:
A) choose a number randomly.
B) be the last person to choose a number.
C) be the first person to choose a number.
D) choose zero.

Question

Quizplus · Accepted Answer

The rollback strategy in the two-thirds game is to choose zero because, theoretically, if everyone is rational and trying to win, they will keep choosing lower numbers, eventually converging to zero.

In the Two-Thirds Game, in Which You Choose a Number