Consumer Equilibrium Class 11 Notes Free [updated] Jun 2026

Here are comprehensive Class 11 Economics notes on . These notes cover the syllabus generally prescribed by CBSE/State Boards (NCERT), focusing on both the Utility Analysis and Indifference Curve Analysis approaches.

Alfred Marshall assumed that utility can be measured cardinally. We analyze equilibrium under two scenarios. Case A: Single Commodity Framework A consumer buying a single commodity (

If the budget line cuts the indifference curve, it means the consumer can reach a higher indifference curve (representing more satisfaction) with the same amount of money. Equilibrium is achieved at the highest possible IC where the budget line just touches (is tangent to) the curve. Summary of Key Formulas for Your Exams consumer equilibrium class 11 notes free

We must adjust MU for money. Utility from the good (MU of apple) must equal Utility lost by spending money (MU of money = Price).

This approach (pioneered by Hicks and Allen) suggests that utility cannot be measured, only ranked (ordinal). A. Indifference Curve (IC) Here are comprehensive Class 11 Economics notes on

To get more of one good, the consumer must give up some of the other good to keep satisfaction constant.

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 We analyze equilibrium under two scenarios

The consumer reaches maximum satisfaction where the budget line is perfectly tangent to the highest possible indifference curve.

Utility can be measured in absolute numbers called "utils" (proposed by Alfred Marshall).