After paying $12 to enter an all-you-can-eat buffet, you can eat as much food as you desire. The marginal cost of an additional plate of food is:

Question

Quizplus · Accepted Answer

The marginal cost of an additional plate of food is zero dollars because you have already paid the fixed cost of $12 to enter the buffet and can now consume as much food as you desire without any additional cost.

After Paying $12 to Enter an All-You-Can-Eat Buffet, You Can