This document discusses different types of markets: perfect competitive market, monopoly market, monopolistic market, and oligopoly market. It provides details about each market type, including their key characteristics and how price is determined. The perfect competitive market has many buyers and sellers and goods are identical. A monopoly market has a single seller. A monopolistic market has some competition but products are similar rather than identical. An oligopoly market has a small number of sellers producing similar products, requiring cooperation between sellers to determine prices.