If an increase in autonomous consumption spending of $25 million results in a $100 million increase in equilibrium real GDP, then

A nondiscriminating pure monopolist finds that it can sell its 50 th unit of output for $50. We can surmise that the marginal:

A. cost of the 50 th unit is also $50. B. revenue of the 50 th unit is also $50. C. revenue of the 50 th unit is less than $50. D. revenue of the 50 th unit is greater than $50.

? A country would tend to experience currency appreciation relative to other countries if:

a. the profitability of investments within the country increases relative to the rest of the world. b. people in the foreign currency markets expect the value of the currency to rise in the near future. c. the foreign demand for its exports increases. d. all of the above