Fred who is a colts fan paid $75 for a ticket to go to a football game. he also spent an additional $30 for parking and bought dinner for $10. fred took four hours off from a part time job that pays him $10 an hour to go to the game. fred’s opportunity cost of going to the game is
(a) $155
(b) $145
(c) $105
(d) $75
(e) $135

What is the relationship between marginal external cost, marginal social cost, and marginal private cost? a. marginal social cost equals marginal private cost plus marginal external cost. b. marginal private cost plus marginal social cost equals marginal external cost. c. marginal social cost plus marginal external cost equals marginal private cost. d. marginal external cost equals marginal private cost minus marginal social cost. marginal external cost a. is expressed in dollars, so it is not an opportunity cost b. is an opportunity cost borne by someone other than the producer c. is equal to two times the marginal private cost d. is a convenient economics concept that is not real