Need Economics help for writing an assignment about price discrimination

Writing assignment are to be completed in APA format, double-spaced and 2 pages in length. In your response, be certain to answer all questions clearly and concisely.

One method of price discrimination for firms is the use of coupons and rebates. Firms are basically allowing consumers to self-identify their respective price elasticities of demand for a product. Describe the last time you used a coupon or rebate, and another time where you knew a coupon might be available and yet chose not to bother with it. Make sur to explain how the opportunity cost of your time and effort played a part in the choice you made.

Do you think price discrimination through coupons is fair? Should there be laws against this behavior? Why or why not?