【简答题】In 1997, I found myself in a situation I never thought I'd be in: alone and begging for money in New York. My father had been separated from our family, and my mother had recently died from complicat...
【单选题】Last year, Joan bought 50 pounds of hamburger when her household ’s income was $40,000. This year, her household income was only $30,000 and Joan bought 60 pounds of hamburger. All else constant, Joan...
A.
negative, so Joan considers hamburger to be an inferior good
B.
positive, so Joan considers hamburger to be a normal good and a necessity
C.
positive, so Joan considers hamburger to be an inferior good
D.
negative, so Joan considers hamburger to be a normal good but not a necessity