Author Question: How does Ebay differ from an economist's view of a perfect competitive market? a. Ebay has few ... (Read 109 times)

Medesa · **on:** Jul 1, 2018

How does Ebay differ from an economist's view of a perfect competitive market?
a. Ebay has few buyers whereas perfect competitive industry assumes many buyers
b. Ebay has few sellers whereas perfect competitive industry assumes many sellers
c. There is limited information in ebay whereas perfect competitive industry assumes full information for both buyers and sellers
d. There is no difference between these two markets.

Question 2

Seasonal variations can be incorporated into a time-series model in a number of different ways, including:
a. ratio-to-trend method
b. use of dummy variables
c. root mean squared error method
d. a and b only
e. a, b, and c