ISC Class 12 Economics Notes
1. Micro Economic Theory
- Demand and Law of Demand: Understanding the relationship between price and quantity demanded.
- Elasticity of Demand: Measurement of responsiveness of demand to changes in price.
- Consumer’s Equilibrium: Conditions under Cardinal and Ordinal approaches.
- Production and Cost: Concepts of production function, total, average, and marginal cost.
- Market Structures: Characteristics and equilibrium under Perfect Competition, Monopoly, Monopolistic Competition, and Oligopoly.
2. Macro Economic Theory
- National Income: Concepts, methods of measurement, and problems in measurement.
- Money and Banking: Functions of money, commercial banks, and central bank.
- Government Budget: Components and types of budget, fiscal policy.
- Balance of Payments: Structure and components, disequilibrium and measures to correct it.
3. Public Finance
- Public Revenue: Sources of revenue, taxation, and non-tax revenues.
- Public Expenditure: Classification and effects of public expenditure.
- Public Debt: Types, sources, and effects of public debt.
- Fiscal Policy: Objectives, instruments, and role in economic development.
Micro Economic Theory
1. Demand and Law of Demand
- Demand: Quantity of a good or service that a consumer is willing and able to buy at various prices.
- Law of Demand: Other things being equal, as price falls, quantity demanded rises and vice versa.
- Demand Curve: Downward sloping due to substitution effect and income effect.
2. Elasticity of Demand
- Price Elasticity: % change in quantity demanded Ă· % change in price.
- Types: Elastic (>1), Inelastic (<1), Unitary (=1), Perfectly Elastic, Perfectly Inelastic.
- Factors: Availability of substitutes, nature of good, income level, time period.
3. Consumer’s Equilibrium
- Cardinal Utility Approach: Marginal Utility per Rupee should be equal across goods.
- Ordinal Utility Approach: Indifference curve and budget line determine equilibrium.
- Conditions: Tangency of indifference curve and budget line, MRS = Price Ratio.
4. Production and Cost
- Production Function: Relationship between inputs and output.
- Total Product (TP), Marginal Product (MP), Average Product (AP): Concepts of returns to scale.
- Cost Concepts: Fixed Cost, Variable Cost, Total Cost, Marginal Cost, Average Cost.
5. Market Structures
- Perfect Competition: Many buyers and sellers, homogeneous product, free entry/exit.
- Monopoly: Single seller, no close substitutes, price maker.
- Monopolistic Competition: Many sellers, product differentiation, some price control.
- Oligopoly: Few sellers, interdependence, may show collusive or non-collusive behavior.
Macro Economic Theory
1. National Income
- Concepts: GDP, GNP, NDP, NNP, Personal Income, Disposable Income.
- Methods of Measurement:
- Product Method (Value Added)
- Income Method
- Expenditure Method
- Problems: Double counting, non-monetary transactions, underground economy, etc.
2. Money and Banking
- Functions of Money: Medium of exchange, measure of value, store of value, standard of deferred payment.
- Commercial Banks: Accept deposits, provide loans, create credit.
- Central Bank (RBI): Issues currency, controls credit, manages foreign exchange, acts as government’s banker.
3. Government Budget
- Components: Revenue budget and capital budget.
- Types of Budget: Balanced, surplus, and deficit budget.
- Fiscal Policy: Government policy regarding taxation and expenditure to influence the economy.
4. Balance of Payments (BoP)
- Structure: Current Account (trade, services, income, transfers) and Capital Account (loans, investments).
- Diseasequilibrium: Deficit in current account or capital account.
- Measures to Correct BoP Disequilibrium: Import control, export promotion, devaluation, exchange control.
Public Finance
1. Public Revenue
- Sources of Revenue: Includes tax and non-tax sources.
- Taxation: Direct (income tax, corporate tax) and Indirect (GST, customs duties).
- Non-Tax Revenues: Fees, fines, interest receipts, dividends from public enterprises.
2. Public Expenditure
- Classification: Revenue and capital expenditure, developmental and non-developmental.
- Effects: Can stimulate economic growth, reduce inequality, provide public goods and services.
3. Public Debt
- Types: Internal debt (borrowed within country), External debt (borrowed from foreign sources).
- Sources: Market borrowings, loans from RBI, bilateral and multilateral institutions.
- Effects: Debt can help development but may cause inflation or burden future generations if excessive.
4. Fiscal Policy
- Objectives: Economic stability, growth, reducing inequality, employment generation.
- Instruments: Government spending and taxation.
- Role in Economic Development: Encourages investment, improves infrastructure, reduces poverty and unemployment.