Business economics Study Guide

Business competition describes the rivalry among sellers trying to achieve such objectives as increasing profits, market share, and sales volume by varying elements of the marketing mix: price, product, promotion, and place. It drives firms to become more efficient, innovate, and offer better value to consumers. Different market structures, such as perfect competition, monopolistic competition, oligopoly, and monopoly, represent varying degrees of competition, influencing firms' pricing power, output decisions, and consumer welfare. The intensity of competition can be measured by various factors, including the number of firms, market share distribution, and barriers to entry.

In economics, businesses aim to maximise profit, which is the total revenue minus total cost. Total revenue is the total income a firm receives from selling its output, calculated by multiplying the price per unit by the quantity sold. Costs, however, are more nuanced and can be broken down into fixed costs and variable costs. Fixed costs do not change with the level of output in the short run (e.g., rent), while variable costs do (e.g., raw materials). The sum of fixed and variable costs is total cost. Understanding these components is crucial for economic decision-making, as firms use them to set prices, determine production levels, and assess their overall financial health. Profitability is a key indicator of a firm's efficiency and long-term sustainability. An increase in revenue or a decrease in costs, or both, will increase profit, assuming other factors remain constant.