This table shows price and quantity produced for a single firm in a perfectly competitive market.PriceQuantity$1023$1024$1025$1026Given the information in the table shown, what is the marginal revenue when 25 units are produced?

How does total taxes as a percentage of GDP in the United States compare to those of Western European countries, such as the United Kingdom, Germany, and Sweden?

a. U.S. taxation is smaller. b. U.S. taxation is about the same. c. U.S. taxation is slightly larger. d. U.S. taxation is substantially larger.

The proponents of adaptive expectations believe that

a. there will be a substantial time lag before people anticipate the effects of a shift to a more expansionary macro-policy. b. macro-policies that stimulate demand and place upward pressure on the general level of prices will temporarily increase output and employment. c. discretionary changes in macro-policy can be made in a manner that will reduce the economic ups and downs of a market economy. d. all of the above are true.