问题
单项选择题
Marko Tskitishvili, an economist, has been studying the drop in the price of the average household computer in the U.S. and wonders if computers should still be considered a luxury good or if it has now become a normal good. He conducts a survey of 500 people and finds the following:
Assume that 1998 is the base date. Based on the above data, Tskitishvili would conclude that a computer is a:（）
A. luxury good with income elasticity of 1.01.
B. normal good with income elasticity of 0.84.
C. luxury good with income elasticity of 1.18.
答案
参考答案：C
解析：
% change in Computers demanded =(0.57-0.42)/0.495=30.30% % change in income =($53000-$41000)/$47000 =25.53% 30.30%/25.53%=1.18 1.18＞1 so Tskitishvili would conclude that computers are luxury goods.
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