The Cost-Benefit Principle indicates that an action should be taken if: A.its average benefits exceed its average costs. B.its extra benefit is greater than or equal to its extra cost. C.its total benefits exceed its total costs. D.its net benefit (benefit minus cost) is zero. 正确 … 阅读详情>> "The Cost-Benefit Principle indicates that an action should be taken if:"

If a person takes an action if, and only if, the extra benefits from taking that action exceed the extra costs, then that person is: A.not rational. B.following the Cost-Benefit Principle. C.following the Scarcity Principle. D.not following the Cost-Benefit Principle. 正确答案：follow … 阅读详情>> "If a person takes an action if, and only if, the extra benefits from taking that action exceed the extra costs, then that person is:"

Choosing to study for an exam until the extra benefit (e.g., improved score) equals the extra cost (e.g., the value of foregone activities) is: A.not rational because it ignores the importance of total benefits and total costs. B.an application of the Cost-Benefit Principle. C.no … 阅读详情>> "Choosing to study for an exam until the extra benefit (e.g., improved score) equals the extra cost (e.g., the value of foregone activities) is:"

The Scarcity Principle tells us _, and the Cost-Benefit Principle tells us _. A.how to make good choices; that choices involve costs and benefits B.that good choices eliminate scarcity; how to make good choices C.how to make choices; that choices must be made D.that choices must … 阅读详情>> "The Scarcity Principle tells us _, and the Cost-Benefit Principle tells us _."

According to the Cost-Benefit Principle, you should go see the latest Star Wars movie with your friends this week-end if: A.you can afford to go to the movies. B.the extra benefits of seeing the movie are greater than the extra costs of seeing the movie. C.you really like Star Wa … 阅读详情>> "According to the Cost-Benefit Principle, you should go see the latest Star Wars movie with your friends this week-end if:"

A rational person: A.undertakes activities until the net benefits become less than zero. B.makes choices based on total benefits and total costs. C.considers the financial benefits and financial costs of making a choice. D.makes choices based on added benefits and added costs. 正确 … 阅读详情>> "A rational person:"

Suppose that the extra cost to Tim of a third glass of soda is zero because he’s at a restaurant that gives free refills. According to the Cost-Benefit Principle Tim should: A.not drink a third glass of soda. B.drink a third glass of soda if his total benefit from drinking soda i … 阅读详情>> "Suppose that the extra cost to Tim of a third glass of soda is zero because he’s at a restaurant that gives free refills. According to the Cost-Benefit Principle Tim should:"

Janie must choose to either mow the lawn or wash clothes. If she mows the lawn, she will earn $30, and if she washes clothes, she will earn $45. She dislikes both tasks equally and they both take the same amount of time. Janie will therefore choose to _ because it generates a _ e … 阅读详情>> "Janie must choose to either mow the lawn or wash clothes. If she mows the lawn, she will earn $30, and if she washes clothes, she will earn $45. She dislikes both tasks equally and they both take the same amount of time. Janie will therefore choose to _ b"

Dean should play golf instead of preparing for tomorrow’s exam in economics if: A.he is irrational. B.the economic surplus from playing golf is greater than the economic surplus from studying. C.Dean can play golf for free. D.the benefit of golfing is greater than the benefit of … 阅读详情>> "Dean should play golf instead of preparing for tomorrow’s exam in economics if:"

Jen spends her afternoon at the beach, paying $1 to rent a beach umbrella and $11 for food and drinks rather than spending an equal amount of money to go to a movie. Her opportunity cost of going to the beach is: A.the $12 she spent on the umbrella, food and drinks. B.only $0 bec … 阅读详情>> "Jen spends her afternoon at the beach, paying $1 to rent a beach umbrella and $11 for food and drinks rather than spending an equal amount of money to go to a movie. Her opportunity cost of going to the beach is:"

All else equal, relative to a person who earns minimum wage, a person who earns $30 per hour has: A.the same opportunity cost of spending time on leisure activities. B.a higher opportunity cost of working an additional hour. C.a lower opportunity cost of driving farther to work. … 阅读详情>> "All else equal, relative to a person who earns minimum wage, a person who earns $30 per hour has:"

The opportunity cost of an activity includes the value of: A.the least-best alternative that must be foregone. B.the chosen activity minus the value of the next-best alternative. C.all of the alternatives that must be forgone. D.the next-best alternative that must be foregone. 正确 … 阅读详情>> "The opportunity cost of an activity includes the value of:"