Consumer Behavior

Utility Utility is the satisfaction a customer gets from using a product. It refers to the level of satisfaction a consumer experiences. Generally, the term utility carries a wide range of implications, roughly translating to "benefit," "well-being," or "happiness." Consumers derive "utility" from using products that give them satisfaction. Utility can be measured either cardinally or ordinally. Cardinal Utility When measured cardinally, some economists used monetary units, and others suggested...

Marginal Utility Marginal utility measures the additional satisfaction a person gets from consuming one more unit of a commodity. Imagine Nicole is very hungry, and she orders a pizza. She eats the first slice, which gives her immense satisfaction. This satisfaction is her utility from consuming the first slice. She eats another slice of pizza. The additional satisfaction she gets from eating this second slice is its marginal utility. Law of Diminishing Marginal The law of diminishing marginal...

Total Utility Total utility, or TU, is the overall utility received from the consumption of all units of a product. For example, Nicole eats the first slice of pizza. It gives her immense satisfaction. This is her TU from the first slice. She gets some satisfaction from the second slice. The sum of utilities derived from the first and second slices gives TU from two slices of pizza. TU is the cumulative satisfaction from all consumed slices. Marginal Utility Marginal utility, or MU, measures...

Consumer Preferences The cardinal approach of utility uses an imaginary measure of satisfaction, utils. In the ordinal approach, consumer preferences refer to the ranking a consumer makes between different product bundles or baskets. A market basket is a collection of products a consumer can purchase. Two goods are taken in a basket to explain consumer preferences. For example, a market basket could have coffee and sandwiches. Assumptions about Consumer Preferences The following assumptions are...

Assumptions about Consumer Preferences Two assumptions about consumer preferences were explained in the previous lesson. The remaining two are explained below. Transitivity It means that a consumer's preferences are consistent across different market baskets. For example, a consumer prefers Basket A over Basket B and Basket B over Basket C. It is expected that the same consumer would prefer Basket A over Basket C. This can be symbolically represented as If A ≻ B and B ≻ C, then A ≻ C. As...

Indifference curves are a graphical representation of a consumer's preferences. It represents different combinations of goods or market baskets that provide the same level of satisfaction to the consumer. The term 'indifference' shows that the consumer is indifferent towards the various market baskets as she is equally content with all combinations of goods represented on a single curve. For instance, a consumer's two favorite items are pizza and cookies. The consumer has two distinct baskets.

Indifference curves have a few features. Two of those features are that consumers prefer a higher indifference curve, and indifference curves have a downward slope. Consumers Prefer a Higher Indifference Curve People generally prefer to consume more goods rather than less. This concept is visually represented by the position of the indifference curves. The higher the curve, the larger the quantities of goods it represents, and as a result, the higher the consumer preference. For example, market...

Indifference curves have a few features. Two of those features are that indifference curves do not cross, and the indifference curve is convex to the origin. Indifference Curves do not Cross Indifference curves cannot cross each other. To understand why, consider two indifference curves that cross. Points A and B lie on the same indifference curve. So they provide the same level of satisfaction to the consumer. Similarly, points B and C also provide the same level of satisfaction to the...

The marginal rate of substitution, or MRS, is the rate at which a consumer is ready to give up one product in exchange for another while maintaining the same satisfaction. Formula MRS for two goods, X and Y, is denoted as MRS of X for Y. It is the quotient of change in the quantity of Good Y and the quantity of Good X while maintaining the same level of satisfaction. MRSXY = – (ΔY/ ΔX) Where, MRSXY is MRS of X for Y ΔY is the change in the quantity of Good Y ΔX is the change in the quantity of...

Marginal Rate of Substitution, or MRS, measures the amount of one good that a consumer can sacrifice in order to gain an additional unit of another good while maintaining the same level of satisfaction. For example, if the MRS of books for movie tickets is 2, it means that the consumer is willing to sacrifice two movie tickets to obtain one additional book in order to maintain equal satisfaction. The downward slope of the indifference curve is due to diminishing MRS. This is because the...

Indifference curves are usually convex to the origin due to the diminishing marginal rate of substitution. However, the shape of indifference curves varies depending on the type of goods. Indifference Curves of Perfectly Substitute Products Perfect substitutes are goods that a consumer can replace with one another at a constant rate. For example, tea and coffee may be viewed as perfectly substitute products by a consumer. In this case, the marginal rate of substitution (MRS) of one for the...

Budget constraint helps to describe the combinations of products a consumer can afford to buy with their limited income. For instance, a student receives a weekly allowance of $100. He spends this on purchasing books and snacks. A book costs $20 and a snack costs $5. The student can purchase different combinations of these two products. For example, he can buy four books and four snacks. Alternatively, he can buy three books and eight snacks. Each of these combinations costs exactly $100,...

The slope of the budget constraint represents the rate at which a consumer can trade one product for another. For example, a student spends his weekly allowance of $100 on purchasing books and snacks. A book costs $20 and a snack costs $5. Earlier, the student bought three books and eight snacks. Now, he buys four books and four snacks. In doing so, the student trades four snacks for one book. This gives us a slope of four snacks for one book. The slope of the budget constraint is determined by...

A Budget constraint or budget line represents the various combinations of two products a consumer can purchase, given their income and the prices of goods. When the price of a product changes, it affects the consumer's purchasing power. For instance, a student receives a weekly allowance of $100 that he spends on buying books and snacks. Initially, with an allowance of $100, the student could buy a maximum of five books at $20 each. When the price of the book falls to $10, he can afford to buy...

A budget constraint or budget line is affected by a change in the income of the consumer. For instance, a student receives a weekly allowance of $100 that he spends on buying books and snacks. If his weekly allowance doubles to $200, his purchasing power increases. He can now purchase a larger quantity of both books and snacks. The student is now able to choose a greater set of combinations of books and snacks. This allows the student to attain a combination of books and snacks that lie on a...

Consumer choice involves selecting a combination of products as a market basket, or a product bundle. The chosen bundle should provide the highest level of satisfaction to the consumer that can be attained within the constraints of their budget. Budget constraints show the product bundles that a consumer can afford. Any product bundle that can be bought using the consumer's entire budget is preferable. If the entire budget is not used, then the unused amount can be utilized to purchase more...

Consumer choice involves selecting a bundle that provides the highest level of satisfaction to the consumer under the constraints of their budget. The student's budget represents all the combinations of books and snacks he can afford with his $100 weekly allowance. His preferences for these products are represented by indifference curves. Higher indifference curves provide higher levels of satisfaction. When the student chooses how to spend his allowance, he wants to ensure maximum satisfaction.

The optimal bundle that gives maximum satisfaction to a consumer lies at the point where the budget line touches the highest possible indifference curve. At this point, the slope of the budget line, representing the price ratio of the two goods, books and snacks, in our example, is equal to the slope of the indifference curve, which represents the marginal rate of substitution of the two goods. The price ratio of the two goods is the ratio of the per unit price of books to the per unit price of...

When the price of a product changes, it affects the consumption behavior of the consumer. This change in consumption is called the price effect or the total effect of price change. Here, the price of only one product changes. For example, a student's monthly allowance is $100 for books and snacks. The price of a book drops from $20 per unit to $10 per unit, while the price of snacks remains at $5 per unit. This affects the budget constraint or the budget line. Now, the student can purchase ten...

When the price of a product changes, it affects the consumption behavior of the consumer. This change in consumption is called the total effect, which is the sum of the substitution effect and income effect. When the price of a good decreases, consumers tend to substitute it for other goods. For example, the student purchases more books when the price of books decreases from $20 per unit to $10 per unit, while the price of snacks remains at $5 per unit. The relative price of books to snacks...

When the price of a good changes, the consumer purchases a different optimal bundle of the two goods in response to the price change. Each time the price of a good changes, the optimal bundle changes. The Price Consumption Curve, or PCC, shows the collection of optimal bundles of two goods that a consumer purchases, given the changes in the price of one good. For example, as the price of books decreases, the student purchases a different optimal bundle. Similarly, when the price of books...

The price consumption curve shows how the optimal bundle changes with the change in prices of one good. For example, the student changed their purchase of books and snacks with a change in the prices of books. This relation between price changes of books and the quantity of books purchased helps derive the demand curve for books. For each optimal bundle, the quantity of books purchased and the corresponding price of books are noted. This gives the quantity of books demanded by the student at...