Consumer Equilibrium Class 11 Notes Free |top| 90%
✅ These notes are free to use , share, or print. ✅ Covers full CBSE/NCERT Class 11 Microeconomics syllabus for Consumer Equilibrium (Utility Analysis).
| Approach | Name | Key Concept | Applicability | | :--- | :--- | :--- | :--- | | | Single Commodity Case | MU(_x) = P(_x) | One good only | | 2 | Two Commodity Case | ( \fracMU_xP_x = \fracMU_yP_y = MU_m ) | Multiple goods (real life) |
Consumer Equilibrium is the bridge between scarcity and satisfaction. Whether you view it through the (calculating utils) or the Ordinal lens (ranking preferences), the conclusion is the same: a rational consumer stops spending when the "bang for the buck" is equal across all goods.
Total expenditure must equal the consumer's income ( consumer equilibrium class 11 notes free
4. Consumer Equilibrium: Ordinal Utility Approach (Indifference Curve)
Based on ranking preferences rather than measuring them numerically. The National Institute of Open Schooling (NIOS) 2. Cardinal Utility Analysis (Utility Approach) Single Commodity Case A consumer is in equilibrium when the Marginal Utility (MU) of the good is equal to its MU sub x equals P sub x
Core terms include (want-satisfying power), Total Utility (TU) (total satisfaction), and Marginal Utility (MU) (extra satisfaction from one more unit). The Law of Diminishing Marginal Utility states that as consumption rises, MU falls. ✅ These notes are free to use , share, or print
( \fracMU_xMU_m = P_x ). Since ( MU_m ) (Marginal Utility of Money) is assumed constant = 1, the condition simplifies to: [ MU_x = P_x ]
For the utility approach to be valid, certain assumptions are made:
There are two primary methods used in Class 11 Microeconomics to study this concept: Cardinal Utility Approach (Marshallian Analysis): Whether you view it through the (calculating utils)
Formulated by Classical economists like Alfred Marshall. It assumes utility can be measured in exact numbers called Utils (e.g., eating an apple gives 10 utils of satisfaction).
(Answers: 3 – No, MU < P, so buy less. 4 – Consumer allocates income so that last rupee spent on each good gives equal MU. 5 – Utility is subjective, not measurable in numbers.)