Fixed and variable costs, competition, opportunity cost, demand, and supply all affect pricing. Direct competition refers to businesses selling similar products, while indirect competition sells dissimilar products. Price competition uses price to attract customers, while non-price competition uses other factors. Demand depends on factors like utility, price, advertising, fashion, and consumer needs/wants. Supply is affected by costs of production, price, demand, profit goals, competition, and technology. Elasticity of demand, economic conditions, regulations, distribution channels, and company objectives also impact price.