The band Coldplay's funding of 10,000 mango trees in India to help sop up emissions related to the release of their CD, A Rush of Blood to the Head, is an example of fixed-production technology

Third-degree price discrimination occurs when:

A) different groups of consumers are charged different prices. B) consumers are charged different prices at different points of time. C) consumers are charged different prices according to their willingness to pay. D) consumers are charged different prices based on the characteristics of their purchases.

How is a monopolistically competitive market similar to a perfectly competitive market? Do monopolistically competitive markets and monopolies share any common features?

What will be an ideal response?