Use the following graph for a private closed economy (an economy with only a private sector and no international trade) to answer the next question. 
In this economy, investment is
A. $50 billion.
B. $150 billion.
C. $100 billion.
D. $200 billion.
Answer: C
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When a new product is introduced in the market, Lenny always wants to see how popular the item becomes before he purchases it. Lenny's behavior is known as
A) overt collusion. B) limit-pricing. C) a network effect. D) price leadership.
If prices rise within a country, then, other things equal, the value of a unit of domestic currency will:
a. rise in both the domestic and the foreign exchange markets. b. fall in both the domestic and the foreign exchange markets. c. rise in the domestic market and fall in the foreign exchange market. d. fall in the domestic market and rise in the foreign exchange market. e. fluctuate unpredictably in both domestic and foreign exchange markets.
Recall the Application about craft beer and the increase in the price of hops to answer the following question(s).According to this Application, between 2012 and 2017, the increase in craft beer production increased the price of hops:
A. by about 118 percent. B. by about 87 percent. C. by about 18 percent. D. by about 78 percent
Indirect business taxes include all of the following EXCEPT
A. taxes on business equipment. B. sales taxes. C. taxes on corporate profits. D. taxes on business property.