________ is a calculation that adds up costs and benefits using a common unit of measurement, like dollar values

In the long run, perfectly competitive firms typically do not earn any economic profit

a. True b. False

The government wishes to close a recessionary gap by increasing national income by $700 billion. The MPC = 0.8 . Two policies are offered. Policy A calls for $180 billion in increased government spending and $50 billion in increased taxes. Policy B calls for $200 billion in increased government spending and $100 billion in increased taxes. Which of the following will increase the national income

by the desired $700 billion? a. Both policies increase national income by $700 billion but Policy B offers a lower budget deficit. b. Both policies increase national income by $700 billion and create equal budget deficits. c. Neither policy increases national income by $700 billion. d. Only Policy A increases national income by $700 billion. e. Only Policy B increases national income by $700 billion.