The price elasticity of demand is
A) always positive, so there is no reason to consider the absolute value of the price elasticity of demand.
B) always negative, but by convention, economists typically express the price elasticity of demand as an absolute value.
C) always equal to -1, which by convention economists typically express as an absolute value, or 1.
D) always equal to zero, so there is no reason to consider the absolute value of the price elasticity of demand.
B
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The optimum tariff is most likely to apply to
A) a small tariff imposed by a small country. B) a small tariff imposed by a large country. C) a large tariff imposed by a small country. D) a large tariff imposed by a large country. E) an ad valorem tariff on a small country.