Holding everything else constant, an increase in the price of MP3 players will result in
A) a decrease in the quantity of MP3 players supplied.
B) a decrease in the demand for MP3 players.
C) an increase in the supply of MP3 players.
D) a decrease in the quantity of MP3 players demanded.
Answer:
When the marginal benefit equals the marginal cost of the last unit sold in a competitive
market
A) the net benefit of consumers is equal to the net benefit of producers.
B) an economically efficient level of output is produced.
C) producer surplus is equal to consumer surplus.
D) total benefit is equal to total cost.
Answer:
If the long-run aggregate supply curve is vertical,
A) the economy stays at the natural rate of inflation in the long run.
B) the short-run Phillips curve must be vertical.
C) unemployment and inflation are positively related in the long run.
D) the trade-off between unemployment and inflation cannot be permanent.