Textbook publishers often sell the same or essentially identical books in different countries for different prices. Is this an effective form of group price discrimination? A. Yes, because the textbooks are actually different since they have a different cover and an "international" label on them. B. Yes, because the first sale doctrine does not apply to overseas sales. C. No, because people are allowed to buy the books in one country and sell them in another, making money on the arbitrage opportunity. D. No, because poor foreign students can't afford the books.

The correct answer is C

Explanation:

For an effective form of group price discrimination to occur, certain factors must be extant:

When, however, the firm cannot prevent the purchase of the book in one country and the re-sale of the same in another,  the price discrimination is said to be ineffective.

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answer: a. the kind of population living in your neighbourhood.

the census explorer data tool by the us census bureau allows the user to zoom in on any neighbourhood within the united states and find the kind of people residing in that by race and age.  

the tool needs to needs to be used twice – once in order to find what type of people reside in a neighbourhood, and then to see the age groups of the people in the same neighbourhood.