If the market price of a product is $14 and all sellers are price takers, then which of the following is correct?
A) Each seller's total revenue line is graphed as an upward-sloping straight line.
B) The demand curve for each seller's product is a downward-sloping straight line.
C) Each seller can earn more total revenue by raising the price he or she charges above $14.
D) The demand curve for each seller's product is a downward-sloping but not necessarily a straight line.
E) Each seller's total revenue is graphed as an upside-down U-shaped curve.
A
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Refer to the figure below. In response to gradually falling inflation, this economy will eventually move from its short-run equilibrium to its long-run equilibrium. Graphically, this would be seen as 
A. long-run aggregate supply shifting leftward B. Short-run aggregate supply shifting upward C. Short-run aggregate supply shifting downward D. Aggregate demand shifting leftward
About ________ of research on new medicines is carried out in the United States
A) 10 percent B) one-half C) two-thirds D) 90 percent
What is a barter economy? What are its major drawbacks?
According to the law of supply, when will lower corn prices decrease the quantity supplied of corn?
A. always B. when demand is fixed C. when technology improves D. when there are no shortages nor surpluses in the corn market