Which of the following regressions would yield a coefficient estimate that would be directly interpreted as the price elasticity of demand?
A. Quantityi = ?0 - ?1log(Pricei)
B. Quantityi = ?0 + ?1log(Pricei)
C. Quantityi = ?0 + ?1Pricei
D. log(Quantityi) = ?0 + ?1log(Pricei)
Answer: D
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