Every time you go to the grocery store, you try to wait in the shortest line. But the lines always seem to be roughly the same length. Why?
A)Random chance equalizes the length of the lines.
B)Other people are trying to choose the shortest line too.
C)The cashiers work at the same speed.
D)The cashiers do not have an incentive to work faster.

Question

Quizplus · Accepted Answer

Applying the Incentive Principle, we would expect people to try to wait in the shortest line (where the time cost of waiting is the lowest). So, if one line happens to be shorter than the others, customers will quickly join that line.

Every Time You Go to the Grocery Store, You Try