This document provides an overview of pricing concepts including factors that determine price, types of markets, and pricing strategies. It discusses that price is determined by demand and supply. It also explains monopoly and oligopoly market structures. A monopoly is characterized by a single seller, barriers to entry, and no close substitutes. In oligopoly, there are a few dominant sellers that are interdependent and avoid price competition through product differentiation and group behavior. The document includes diagrams to illustrate monopoly profit maximization and loss minimization, as well as the kinked demand curve model of oligopoly pricing.