Which of the following is not a good way to research a product?
a. ask friends and family members who have bought similar items.
b. compare advertisements for the product in different magazines and newspapers.
c. search the internet for product and pricing information.
d. study product reviews in consumer magazines.

The correct answer is letter (B) Compare advertisements for the product in different magazines and newspapers.

The rest of the means and ways in researching a product are shown includes (1) Ask friends and family members who have bought similar items, (2) Search the Internet for product and pricing information. and (3)  Study product reviews in consumer magazines.

Both the size of the deadweight loss from a tax and the tax incidence;