Consumer Equilibrium Class 11 Notes Free [exclusive] -

Correct equilibrium: (MU/P = 9) and 1 unit of Y (MU/P = 6)? Not equal.

This is a fundamental law of economics. It states that as a consumer consumes more and more units of a commodity, the marginal utility derived from each successive unit goes on decreasing, provided the consumption of other commodities remains constant. This principle is the basis for most consumer equilibrium analysis.

): The sum of total satisfaction derived from consuming all units of a commodity. Marginal Utility ( MUcap M cap U

Total satisfaction derived from consuming all possible units of a commodity.

Developed by Hicks and Allen, this assumes utility cannot be measured, only ranked. consumer equilibrium class 11 notes free

When MU becomes zero, TU reaches its maximum point (Point of Satiety). When MU becomes negative, TU starts declining. 3. Law of Diminishing Marginal Utility (DMU)

Slope=PxPySlope equals the fraction with numerator cap P sub x and denominator cap P sub y end-fraction 6. Conditions for Consumer Equilibrium via IC Analysis

An indifference curve shows what a consumer wants to buy, but their shows what they can afford to buy. A budget line represents all the different combinations of two goods a consumer can purchase given their limited income and the market prices of the goods.

A graphical line showing all combinations of two goods that cost exactly equal to the consumer's total income ( Correct equilibrium: (MU/P = 9) and 1 unit of Y (MU/P = 6)

To summarize, a consumer is in equilibrium when they maximize satisfaction from their limited income. This can be explained using two main approaches:

Utility cannot be measured in numbers but can be through preferences.

MRS is the rate at which a consumer is willing to substitute one good for another while maintaining the same level of satisfaction.

This happens due to a diminishing Marginal Rate of Substitution (MRS) . It states that as a consumer consumes more

A consumer buys a good until Marginal Utility (MU) = Price (P) .

D. Condition for Equilibrium (Two-Commodity Case / Law of Equi-Marginal Utility) When a consumer spends their income on two goods ( ), equilibrium is achieved when:

This condition is derived from the law of diminishing marginal rate of substitution. Convexity ensures that the consumer is indeed achieving maximum satisfaction at the point of tangency, and not at a corner solution. It implies that the MRSxy declines as the consumer moves down along the indifference curve. In simple terms, the consumer prefers a balanced combination of goods.