Carbon footprints can be calculated for
a. households
b. products
c. individuals
d. all of the above
e. none of the above
d. all of the above
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Which statement is false?
A. Before the Civil War about three quarters of the farms of over 500 acres were located in the South. B. The great abundance of land was the most influential factor in the United States' economic development during the 19th century. C. Although the percentage of Americans living on farms has declined substantially over the last 70 years, the actual number of people living on farms has remained constant. D. None of the statements are false.
Joey cuts grass during the summer. He rents a lawn mower from his dad. Which of the following statements best illustrates the difference between the short run and the long run for Joey?
A) Joey's friends say they will help him, but when he calls them, they say they have other things to do. B) When Joey acquires more customers, he responds by working more hours. Next year, he will buy a lawn mower and split the work with his brother. C) Some customers pay Joey immediately; others wait till the following week. D) Joey has had to turn away some customers because he is already too busy.
Which of the following is TRUE for a monopolistically competitive firm?
A) MR = P B) MR > P C) MR < P D) MR = AFC
Josh went to watch a movie, but decided to leave halfway and went for a walk to the nearby park. Which of the following is most likely to be true in this case? a. The price of the movie ticket represents a sunk cost
b. The opportunity cost of going for the walk is higher than the opportunity cost of watching the movie. c. Josh's marginal utility from walking increases as he walks more. d. Josh's marginal utility from watching another movie is the same as his marginal utility from walking another mile.