What is economic in consumer Behaviour?

  • This classic text has introduced generations of students to the economic theory of consumer behaviour. Written by 2015 Nobel Laureate Angus Deaton and John Muellbauer, the book begins with a self-contained presentation of the basic theory and its use in applied econometrics. These early chapters also include elementary extensions of the theory to labour supply, durable goods, the consumption function, and rationing. The rest of the book is divided into three parts. In the first of these the authors discuss restrictions on choice and aggregation problems. The next part consists of chapters on consumer index numbers; household characteristics, demand, and household welfare comparisons; and social welfare and inequality. The last part extends the coverage of consumer behaviour to include the quality of goods and household production theory, labour supply and human capital theory, the consumption function and intertemporal choice, the demand for durable goods, and choice under uncertainty.

    Customer reviews

    22nd Jul 2015 by Revilo

    This book is very important to every college student like us, this makes my day complete in economics

    Log in to review

    • Date Published: August 1980
    • format: Paperback
    • isbn: 9780521296762
    • length: 466 pages
    • dimensions: 227 x 152 x 22 mm
    • weight: 0.63kg
    • availability: Available
  • List of tables and figures Preface Part I. Consumer Demand Analysis:1. The limits to choice 2. Preferences and demand 3. The theory at work 4. Extensions to the basic model Part II. Separability and Aggregation:5. Restrictions on preferences 6. The theory of market demand Part III. Welfare and Consumer Behaviour:7. Consumer index numbers 8. Household characteristics, demand, and household welfare comparisons 9. Social welfare and inequality Part IV. Extensions and Applications:10. The quality of goods and household production theory 11. Labor supply 12. The consumption function and intertemporal choice 13. The demand for durable goods 14. Choice under uncertainty References List of notation Name index

    Subject index.

    Look Inside

  • Angus Deaton
    Angus Deaton is Dwight D. Eisenhower Professor of Economics and International Affairs in the Department of Economics and the Woodrow Wilson School of Public and International Affairs at Princeton University. He is the author of many books, including The Great Escape: Health, Wealth, and the Origins of Inequality (2013). In 2015, he was awarded the Nobel Memorial Prize in Economic Sciences in recognition of his outstanding contribution to the analysis of consumption, poverty and welfare.

    John Muellbauer
    John Muellbauer is Senior Research Fellow of Nuffield College, Professor of Economics and Senior Fellow of the Institute for New Economic Thinking at the Oxford Martin School, University of Oxford. He is a CEPR Research Fellow and a Fellow of the British Academy, the Econometric Society and the European Economic Association. In addition to his many academic affiliations, he has also been a consultant to the Bank of England, HM Treasury and the UK Department for Communities and Local Government (DCLG).

The economic man approach to consumer behaviour perceives consumers to be highly rational and adequate engaging in economic transactions in a beneficial manner for self-interest (Tyagi, 2004). According to this principle consumer rational behaviour includes being aware of all alternative options, as well as, having knowledge of advantages and disadvantages associated with each option (Kahle and Close, 2006).

Blackwell et al. (2006) adopt a sceptical approach to the level of applicability of economic man theory in today’s marketplace in practical levels arguing that nowadays consumers are more tempted to make ‘irrational’ purchase decisions due to the highly sophisticating levels of marketing strategies.

References 

Blackwell, R., Miniard, P. and Engel, J. (2006) “Consumer behavior”, Mason: Thompson

Kahle L.R. and Close, A. (2006) “Consumer Behaviour Knowledge for Effective Sports and Event Marketing”, Taylor & Francis, New York, USA

Tyagi, C. and Kumar, A. (2004) “Consumer Behaviour”, Atlantic Publishers, US

Category: Consumer Behaviour

The Economic Model, one of the oldest models of Consumer Behaviour tries to explains what a person is likely to buy and in what quantity. This model takes into consideration the behaviour of an economic man, who would give foremost importance to the monetary or financial considerations while making a decision. The ultimate objective of an individual, as per this model, is the maximization of satisfaction by investing the minimum money resources for the satisfaction of needs and wants.
Despite having certain limitations, it is one of the widely used models of consumer behaviour and is a must know for all the students of marketing and business management. This video has been converted from the class lecture notes with a voice-over prepared to explain the concepts in a lucid and easy to understand manner.

Consumer theory is the study of how people decide to spend their money based on their individual preferences and budget constraints. A branch of microeconomics, consumer theory shows how individuals make choices, subject to how much income they have available to spend and the prices of goods and services.

Understanding how consumers operate makes it easier for vendors to predict which of their products will sell more and enables economists to get a better grasp of the shape of the overall economy

  • Consumer theory is the study of how people decide to spend their money based on their individual preferences and budget constraints.
  • Building a better understanding of individuals' tastes and incomes is important because these factors impact the shape of the overall economy.
  • Consumer theory is not flawless, though, as it based on a number of assumptions about human behavior.

Individuals have the freedom to choose between different bundles of goods and services. Consumer theory seeks to predict their purchasing patterns by making the following three basic assumptions about human behavior:

  • Utility maximization: Individuals are said to make calculated decisions when shopping, purchasing products that bring them the greatest benefit, otherwise known as maximum utility in economic terms
  • Nonsatiation: People are seldom satisfied with one trip to the shops and always want to consume more
  • Decreasing marginal utility: Consumers lose satisfaction in a product the more they consume it

Working through examples and/or cases, consumer theory usually requires the following inputs:

  • A full set of consumption options
  • How much utility a consumer derives from each bundle in the set of options
  • A set of prices assigned to each bundle
  • Any initial bundle the consumer currently holds

Building a better understanding of individuals' tastes and incomes is important because it has a big bearing on the demand curve, the relationship between the price of a good or service and the quantity demanded for a given period of time, and the shape of the overall economy.

Consumer spending drives a significantly large chunk of gross domestic product (GDP) in the U.S. and other nations. If people cut down on purchases, demand for goods and services will fall, squeezing company profits, the labor market, investment, and many other things that make the economy tick.

Consumer choice theory is taken very seriously, influencing everything from government policy to corporate advertising.

Let’s look at an example. Kyle is a consumer with a budget of $200, who must choose how to allocate his funds between pizza and video games (the bundle of goods). If a pizza costs $10 and a video game cost $50, Kyle could buy 20 pizzas, or four video games, or five pizzas and three video games. Alternatively, he could keep all $200 in his pocket.

How can an outsider predict how Kyle is most likely to spend his money? Consumer theory can help give an answer to this question.

Challenges to developing a practical formula for this situation are numerous. For instance, as behavioral economics points out, people are not always rational and are occasionally indifferent to the choices available. Some decisions are particularly difficult to make because consumers are not familiar with the products. There could also be an emotional component involved in the decision-making process that isn't able to be captured in an economic function.

The many assumptions that consumer theory makes means it has come under heavy criticism. While its observations may be valid in a perfect world, in reality there are numerous variables that can expose the process of simplifying spending habits as flawed.

Going back to the example of Kyle, figuring out how he will spend his $200 is not as clear-cut as it might at first seem. Economics assumes he understands his preferences for pizza and video games and can decide how much of each he wants to purchase. It also presumes there are enough video games and pizzas available for Kyle to choose the quantity of each he desires.