It is appropriate to use the supply-and-demand model if, in a market,
A) everyone is a price taker with full information about the price and quality of the good.
B) firms sell identical products.
C) costs of trading are low.
D) All of the above.
D
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Sherri lives in Canada and is considering buying a new sofa. If the price level in Canada falls and the price level in the United States does not change, Canadian manufactured sofas are relatively
A) less expensive, so Sherri will likely purchase a U.S. manufactured sofa. B) less expensive, so Sherri will likely purchase a Canadian manufactured sofa. C) more expensive, so Sherri will likely purchase a U.S. manufactured sofa. D) more expensive, so Sherri will likely purchase a Canadian manufactured sofa. E) Both answers B and D could be correct depending on whether U.S. manufactured sofas were initially more expensive or less expensive than Canadian sofas.
Binary variables
A) are generally used to control for outliers in your sample. B) can take on more than two values. C) exclude certain individuals from your sample. D) can take on only two values.