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WhichofthefollowingwouldNOTleadtoanoutwardshiftinthedemandcurveforGoodA?

题型：单选题

选项

A. A fall in the price of a complementary good (Good B).

B. An increase in efficiency allowing the price of Good A to be cut

C. A decrease in direct taxes

D. A rise in the price of a substitute good (Good C)

正确答案：B