Basic Economic Concepts

📘 NDA Economics · ECN01 📑 NDA Level : High Priority

For NDA, Basic Economics is direct recall — definitions, factor rewards, and the three central problems. Questions are NCERT Class 9–10 level. One clear definition per concept and you score full marks here.

📌 NDA Pattern: Factor of production → its reward • Three central problems • Micro vs Macro • Economic systems • Opportunity cost definition

1. Scarcity, Choice & Central Problems

Economics: The study of how individuals/nations allocate scarce resources to satisfy unlimited wants.
Scarcity: Limited resources vs unlimited wants = central economic problem. Forces choice-making.
Opportunity Cost: Cost of the next best alternative forgone when a choice is made.
Three Central Problems: (1) What to produce? (2) How to produce? (3) For Whom to produce?

2. Factors of Production & Rewards

Land → Rent

All natural resources; fixed supply

Labour → Wages

Human mental/physical effort

Capital → Interest

Physical capital: machines, tools (NOT money)

Entrepreneur → Profit

Organises; bears risk; residual claimant

3. Economic Systems & Micro vs Macro

Market Economy: Private ownership; price mechanism; e.g., USA.
Command Economy: State ownership; central planning; e.g., North Korea.
Mixed Economy: Both; India = Mixed Economy.
Micro: Individual units (a firm, a consumer). Macro: Whole economy (GDP, inflation).

📝 NDA PYQBasic Economics — NDA Pattern

Q1. What is the reward for labour as a factor of production? (NDA I 2023)

(a) Rent (b) Profit (c) Interest (d) Wages

Answer: (d) Wages
Land=Rent; Labour=Wages; Capital=Interest; Entrepreneur=Profit. NDA directly asks this sequence almost every year.

Q2. India has a: (NDA II 2022)

(a) Market economy (b) Socialist economy (c) Mixed economy (d) Command economy

Answer: (c) Mixed economy
Both public sector (railways, defence, some banking) and private sector (IT, FMCG, services) coexist in India since independence. Post-1991 liberalisation expanded private sector role.

Q3. Which of the following is NOT a factor of production? (NDA I 2022)

(a) Land (b) Money (c) Labour (d) Capital

Answer: (b) Money
Money is NOT a factor of production. Factors = Land, Labour, Capital (physical), Entrepreneur. Money is a medium of exchange, not a productive input itself.

📝 Rapid Revision — ECN01

⚗ Factors & Rewards

Land = Rent
Labour = Wages
Capital = Interest (physical, NOT money)
Entrepreneur = Profit (bears risk)

🌎 Systems

India = Mixed economy
Market = USA; Command = North Korea
Micro = individual; Macro = aggregate economy
Opportunity cost = next best alternative forgone

📝 Mock Tests 🎯 Economics Quiz ✈️ Telegram