According to the figure shown, if Adidas charges a low price, then Nike should:

A firm will avoid producing additional emissions whenever the fee is

A) less than the MSB. B) greater than the MSB. C) less than the MCA. D) greater than the MCA. E) equal to the distance between MSB and MCA.

Which of the following statements is true about the United States over the past fifty years?

A) There is no evidence of political business cycles in the United States. B) The debt-to-GDP ratio has been roughly constant. C) Under either party, output growth has been generally higher in the year preceding an election than in other years. D) none of the above