Consumer Behaviour Theory - Economics (Senior Secondary)

Every consumer faces limited income but unlimited wants, forcing them to make choices daily. This course examines Consumer Behaviour Theory to explain how individuals make these choices. It covers both cardinal and ordinal utility theories. Students study the law of diminishing marginal utility to understand why satisfaction drops as consumption increases. The curriculum also analyses indifference curves and budget lines. Understanding these principles is crucial for students preparing for examinations and future careers in business or public policy. Buyers use these concepts to maximise satisfaction with limited money. Sellers and producers rely on the same theories to set prices and predict market demand. Learners apply this knowledge to interpret real-world pricing strategies and make better personal financial decisions. By the end of this course, learners master the mathematical calculation of marginal utility and total utility. They learn to plot and interpret the slope of the indifference curve and the gradient of the budget line. Students will calculate consumer equilibrium using specific equations to find the exact point where satisfaction is highest. The course also trains them to compute consumer surplus to measure the benefit a buyer gets when paying less than the maximum willing price. This course is primarily for Nigerian secondary school students and recent leavers preparing for their final examinations. It also benefits early university students taking introductory economics modules. The content provides a strict academic foundation for anyone needing to understand microeconomic principles. Secondary students gain the exact knowledge required to pass national exams, while older learners build a solid base for advanced economic analysis.

$ 9.99

Enrolment valid for 12 months

This course is also part of the following learning track. You may join the track to gain comprehensive knowledge across related courses.

Economics

Economics dictates how societies allocate scarce resources to survive. This track delivers the exact principles required to pass the JAMB UTME and understand the economy of Nigeria. You study resource allocation, supply and demand, production costs, and market structures. The curriculum provides factual knowledge on national income, public finance, and international trade. You gain a practical foundation to predict market trends, manage finances, and make rational decisions in real business environments. This programme targets senior secondary school students preparing for the JAMB UTME and final examinations. It directly serves university freshmen who require a strict review of basic economics. Young entrepreneurs starting a business in Nigeria will find the pricing principles and survival analysis highly useful. Anyone who seeks a factual grasp of economic realities and local market operations will benefit from this clear structure. Upon completion, you will calculate price elasticity, determine market equilibrium, and interpret the graphs of production costs. You will understand the functions of financial institutions, the calculation of national wealth, and the mechanics of global commerce. This exact knowledge guarantees a high score in your examinations and provides a strong base for university studies in finance, business, or public administration. You will possess the analytical skills to evaluate government policies and navigate the realities of modern trade.

Course Chapters

1. Introduction

This chapter introduces the study of consumer behaviour theory, outlining the structure and expectations of the course. You will identify the scope of the course, recognise the relevance of utility analysis, and prepare for the detailed study of cardinal and ordinal approaches.

Concept Overviews

4 Lessons

2. Cardinal Utility Theory

This chapter examines the cardinal approach to utility analysis, which treats satisfaction as measurable in numerical units. It covers the core assumptions of the cardinal school, the definitions and calculations of total, average, and marginal utility, and the construction of utility schedules and curves. You will define utility and distinguish between total, average, and marginal utility; calculate marginal utility from changes in total utility; construct utility schedules and plot total, average, and marginal utility curves; and identify the assumptions underlying the cardinal approach to consumer behaviour.

Concept Overviews

4 Lessons

Problem Walkthroughs

5 Lessons

3. Diminishing Marginal Utility

This chapter analyses the law of diminishing marginal utility, which explains why satisfaction from each additional unit of a commodity declines as consumption increases. It covers the statement, illustration, and criticisms of the law, as well as its connection to the downward-sloping demand curve. You will state the law of diminishing marginal utility; illustrate the law using a utility schedule and curve; explain the criticisms of the law; and derive the demand curve from the marginal utility curve using the Marshallian approach.

Concept Overviews

4 Lessons

Problem Walkthroughs

4 Lessons

4. Consumer Equilibrium

This chapter examines how a rational consumer achieves maximum satisfaction given limited income and commodity prices. It covers the condition for consumer equilibrium using marginal utility analysis, the equi-marginal utility rule, and the application of these principles to utility maximisation. You will state the condition for consumer equilibrium; apply the equi-marginal utility rule to determine the optimal consumption bundle; calculate consumer equilibrium using the formula MUX/PX = MUY/PY; and explain the effects of changes in income and prices on consumer equilibrium.

Concept Overviews

2 Lessons

Problem Walkthroughs

1 Lesson

5. Ordinal Utility Theory

This chapter introduces the ordinal approach to utility analysis, which ranks preferences rather than measuring satisfaction numerically. It explains the concept of a scale of preference and the assumption that utility can be ranked. You will define the ordinal utility approach, explain the use of a scale of preference, and state the key assumption of the ordinal school of thought.

Concept Overviews

3 Lessons

Problem Walkthroughs

3 Lessons

6. Consumer Equilibrium

This chapter applies indifference curve analysis to determine the consumer's equilibrium position, where maximum satisfaction is achieved given the budget constraint. It covers the tangency condition, the effects of changes in income and prices on the equilibrium, and the distinction between income and substitution effects. You will determine the consumer equilibrium point as the tangency of the highest attainable indifference curve with the budget line; explain the effects of a change in income on the equilibrium using income-consumption curves; explain the effects of a change in price on the equilibrium using price-consumption curves; and distinguish between the income and substitution effects of a price change.

7. Consumer Surplus

This chapter examines the concept of consumer surplus as the difference between the maximum price a consumer is willing to pay and the actual market price. It covers the definition, graphical illustration, and basic calculation of consumer surplus. You will define consumer surplus, calculate consumer surplus from given data, and illustrate consumer surplus graphically.

8. Conclusion

This chapter provides a comprehensive summary of the entire course on consumer behaviour theory, revisiting the cardinal and ordinal approaches, the law of diminishing marginal utility, consumer equilibrium, and consumer surplus. It consolidates the key principles and their relevance to economic decision-making. You will review the major concepts of utility theory, recall the conditions for consumer equilibrium under both cardinal and ordinal approaches, and appreciate the practical applications of consumer behaviour theory to pricing, policy, and personal financial decisions.