Mutual funds that are composed of corporate and government bonds are known as:

Which of the following best exemplifies a deadweight cost?

A) Eating something in a restaurant you don't really want because you have already paid for it. B) Paying for something in a restaurant but not eating it. C) Refusing dessert in a restaurant although it is included in the price of the meal. D) Tipping the waiter even though he gave slow, surly, and inattentive service. E) Waiting twenty minutes for a table to become available in a restaurant.

In the long run, perfectly competitive firms typically do not earn any economic profit

a. True b. False