This document discusses the characteristics of perfect competition in economics. It outlines the necessary conditions for a perfectly competitive market, which are: firms are price takers; there are many buyers and sellers; there are no barriers to entry or exit; products are identical; and there is complete information. It explains that under perfect competition, each individual firm faces a perfectly elastic demand curve, meaning it is a price taker, while the market demand curve is downward sloping. The individual firm can have no impact on the market price.