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Determination of Income and Employment

CBSE · Class 12 · Economics

Quick revision notes for Determination of Income and Employment — CBSE Class 12 Economics. Key concepts, formulas, and definitions for last-minute revision.

34 questions70 flashcards5 concepts

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A flowchart illustrating how macroeconomic models simplify the economy by focusing on key variables like national income, price level, and interest rate, and how 'ceteris paribus' is applied to analyz
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Key Topics to Revise

1

1. Core ideas: ex ante, ex post, and aggregate demand

  • Ex post values are actual accounting measures.
  • Ex ante values are planned measures.
  • Ex ante shows what has been planned; ex post shows what has actually happened.
2

2. Consumption, saving, and propensity concepts

  • Consumption depends on income and has autonomous and induced parts.
  • MPC is the rate of change of consumption with respect to income.
  • MPC lies between 0 and 1 inclusive.
3

3. Equilibrium income in the two-sector model

  • Equilibrium requires ex ante aggregate demand to equal ex ante aggregate supply.
  • In the simple model, the supply side is shown by the 45 degree line.
  • Equilibrium income is found when Y = AD.
4

4. Multiplier mechanism

  • An initial increase in autonomous expenditure creates a larger final increase in income.
  • The multiplier works through repeated rounds of spending and income creation.
  • As income rises, consumption rises by MPC times the income increase.

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Full Notes

Key Concepts

Ex ante values are planned measuresConsumption is given by C =MPC = ΔC/ΔY = cSavings equals income minus consumptionInvestment is assumed autonomous and constant

Frequently Asked Questions

What are the important topics in Determination of Income and Employment for CBSE Class 12 Economics?
Determination of Income and Employment covers several key topics that are frequently asked in CBSE Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Determination of Income and Employment — CBSE Class 12 Economics?
Understand the core concepts first, then work through the 34 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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