Stephanie has just placed an order for the latest video after she received a personalized e-mail. The e-mail is an example of

If a 6 percent increase in income leads to a 4 percent increase in quantity demanded for audio books, the income elasticity of demand is

A) -0.67. B) 0.67. C) 1.5. D) 2.

How do we determine the value (willingness to pay) for insurance?

What will be an ideal response?