Individuals, firms, markets and market failure Study Guide

Market Structures

Market structures define the competitive environment in which firms operate. Key types include:

• Perfect Competition: Many firms, identical products, free entry and exit.
• Monopolistic Competition: Many firms, differentiated products, some price control.
• Oligopoly: Few firms, interdependent pricing, potential for collusion.
• Monopoly: Single firm, significant market power, barriers to entry.

Consumer Behavior

Understanding consumer behavior involves analyzing how individuals make decisions regarding the purchase of goods and services. Factors influencing this behavior include preferences, income, and the prices of related goods.

Elasticity

Elasticity measures how responsive demand or supply is to changes in price or income. Key types include:

• Price Elasticity of Demand: Sensitivity of quantity demanded to price changes.
• Income Elasticity of Demand: Sensitivity of quantity demanded to changes in consumer income.
• Cross Elasticity of Demand: Sensitivity of quantity demanded for one good to the price change of another good.

Market Failure

Market failure occurs when the allocation of goods and services is not efficient. Common causes include:

• Externalities: Costs or benefits affecting third parties not involved in the transaction.
• Public Goods: Non-excludable and non-rivalrous goods leading to underproduction.
• Imperfect Information: Situations where consumers or producers lack essential information, leading to suboptimal decisions.