Economists represent a consumer’s preferences using
举一反三
- Economists often evaluate the welfare effects of changes in market structure or of government policies by looking at changes in consumer surplus。（ ）
- A symbol means using concrete objects to represent abstract ideas.
- According to the passage, consumer confidence is most affected by ______. A: economic activities B: economists’ analyses C: employment situations D: labor market revivals
- COMPREHENSION QUESTION 2.5.1What did the study conducted by Dr. Repacholi and Dr. Gopnik using crackers and broccoli find that 18 month old babies knew that 14 month old babies did not? A: Everyone should eat broccoli because it is healthier than crackers B: One's own preference might differ from the preferences of others C: Everyone prefers to eat crackers over broccoli D: One should always act on one’s own preferences as opposed to the preferences of others
- What does Jacob’s ladder represent?