Price discrimination sounds like a socially “bad” thing. Can you think of any reasons why price discrimination could be viewed as a socially “good” thing? “Declining block pricing is a crude form of...

Price discrimination sounds like a socially “bad” thing. Can you think of any reasons why price discrimination could be viewed as a socially “good” thing? “Declining block pricing is a crude form of perfect price discrimination.” In what sense is this statement correct? In what important way is it wrong?