Which of the following is an example of a tax based on the benefits principle?

a.A gasoline tax imposed by a city to be used to upgrade facilities local high school

b.An income tax

c. A toll road

d.A lump-sum tax assessed on household in town to finance the construction of soccer fields

Which of the following is true about a monopolistically competitive firm?

a It can earn an economic profit in the short run and the long run

b.It can earn an economic profit in the short run, but not the long run.

c.It can earn an economic profit in the long run, but not the short run

d.It cannot earn an economic profit in either the short or long run

A consumer maximizes utility when she consumes at a point where

a. the marginal utility of each good is the same.

b. the marginal utility per dollar spent on each good is the same.

c. the price of each good is the same.

d. All of the above statements are true.

Which of the following is not a measure of dispersion?

variance

standard deviation

interquartile range

median

range