If you buy food which then is put on special at half price just after you paid,
A. your welfare will not change since you just finished your shopping.
B. you will be disappointed and be worse off.
C. you will be better off because you will go back to get some more food at bargain prices.
D. logic cannot lead to an answer to this question even if you have a typical preference pattern.
Answer: C
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The World Bank sorts countries into the following three major groups:
a. high-income economies, middle-income economies, low-spending economies b. high-spending economies, middle-spending economies, low-spending economies c. super-high-income economies, middle-income economies, low-income economies d. high-income economies, middle-income economies, zero-income economies e. high-income economies, middle-income economies, low-income economies
The efficient markets hypothesis says that beating the market consistently is
a. impossible. Many studies find that beating the market is, at best, extremely difficult. b. impossible. Many studies find that beating the market is relatively easy. c. relatively easy. Many studies find that beating the market is, at best, extremely difficult. d. relatively easy. Many studies find that beating the market is relatively easy.
The median-voter model implies that a political office seeker will:
A. adopt more extreme views when seeking his or her party's nomination than when running against the other party's opponent. B. adopt less extreme views when seeking his or her party's nomination than when running against the other party's opponent. C. favor extensive government spending because demand curves for public goods are added vertically rather than horizontally. D. favor the private resolution of externality problems rather than governmental intervention.
The linear regression equation, Y = a + bX, was estimated. The following computer printout was obtained: 
Given the above information, the exact level of significance of b? is
A. 0.171 percent. B. 2.921 percent. C. 1.71 percent. D. 2.66 percent. E. 1 percent.