Economics - Concepts, Sectors, Money and Consumers
Domain 4 - Economics
Economics questions test basic concepts, the three sectors, money and credit, development indicators and consumer rights, often through data or a village-level situation.
Core concepts
- Scarcity forces choice; the value of the forgone alternative is opportunity cost.
- Factors of production: land (rent), labour (wages), capital (interest), entrepreneur (profit).
- Development is measured by per capita income (national income ÷ population) and the Human Development Index (income, education, health).
Sectors and employment
- Primary (agriculture, mining), secondary (manufacturing, construction), tertiary (transport, trade, services).
- Organised vs unorganised; public vs private.
- Disguised unemployment: more workers than needed, so removing one does not reduce output - typical of family farms.
Money, banking and credit
- The Reserve Bank of India (1935) issues notes, acts as banker to government and controls credit.
- Formal credit (banks, cooperatives) is cheaper and regulated; informal credit from moneylenders is easy but costly.
- Self-Help Groups pool small savings and extend collateral-free micro-loans, especially to rural women.
Consumer rights
Under the Consumer Protection Act, 2019, a buyer of a defective good or deficient service may claim replacement, refund or compensation before District, State or National Commissions.
Worked example
'Four family members work a one-hectare plot; output stays the same when one joins a dairy.' The farm shows disguised unemployment - the fourth worker's marginal product is near zero. The right answer is not to call all four unemployed but to recommend diversification into dairy or services so the surplus worker earns without cutting farm output.
Traps
- Treating GDP and per capita income as identical.
- Calling every non-farm job 'organised sector'.
- Writing that the RBI prints coins; coins are minted by the Government of India, notes are issued by the RBI.