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A market in Country B, which is a small economy, is described by the following supply and demand curves, respectively: QS=P-5 QD=40-2P where QSand QDare
A market in Country B, which is a small economy, is described by the following supply and demand curves, respectively:
QS=P-5
QD=40-2P
where QSand QDare quantity supplied and demanded, and P is price.Suppose the world price is $10. What is the change in consumer surplus before trade and after trade?
a.
125
b.
25
c.
50
d.
75
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