Chapter 1: Introduction – Microeconomics

Introduction to Microeconomics

Class 12 • Chapter 1 • Exercises

Q1 Discuss the central problems of an economy.

Every economy faces scarcity of resources relative to human wants. This leads to three central problems:

  1. What to Produce: The economy must decide which goods and services to produce (consumer goods vs. capital goods) and in what quantities.
  2. How to Produce: The problem of choosing the technique of production.
    • Labour Intensive Technique: Uses more labour (promotes employment).
    • Capital Intensive Technique: Uses more machines (promotes efficiency).
  3. For Whom to Produce: The problem of distribution of final goods and services (or income) among the factors of production (land, labour, capital, entrepreneur).
Q2 What do you mean by the production possibilities of an economy?
Production Possibilities refer to the various combinations of two goods (or sets of goods) that an economy can produce with its given resources and available technology, assuming that all resources are fully and efficiently utilized.
Q3 What is a Production Possibility Frontier (PPF)?
[Image of production possibility frontier graph]

The Production Possibility Frontier (PPF) (also called PPC or Transformation Curve) is a curve that depicts all possible combinations of two goods that an economy can produce when resources are fully employed and technology is constant.

Key Features: It is downward sloping (scarcity) and concave to the origin (increasing Marginal Rate of Transformation).
Q4 Discuss the subject matter of economics.
The subject matter of economics is broadly divided into two main branches:
  1. Microeconomics: Deals with the behavior of individual economic units (like a consumer, a firm, a market). It focuses on price determination and allocation of resources.
  2. Macroeconomics: Deals with the economy as a whole (aggregates). It focuses on determination of national income, employment level, and general price level.
Q5 Distinguish between a Centrally Planned Economy and a Market Economy.
Basis Centrally Planned Economy Market Economy
Ownership Factors of production are owned by the Government. Factors of production are owned by Private individuals.
Decision Making Decisions are made by a central authority (Planning Commission). Decisions are made by market forces (Demand & Supply).
Motive Social Welfare. Profit Maximization.
Prices Determined by the government (Administered prices). Determined by the market mechanism.
Q6/7 Positive vs. Normative Economic Analysis
Feature Positive Economics Normative Economics
Meaning Deals with “what is” or “what was”. It analyzes cause and effect relationships. Deals with “what ought to be”. It involves value judgments.
Verification Can be verified with actual data. Cannot be verified (it is an opinion).
Example “India’s inflation rate is 6%.” “The government should reduce inflation.”
Q8 Distinguish between Microeconomics and Macroeconomics.
Basis Microeconomics Macroeconomics
Scope Studies individual units (Consumer, Firm). Studies the economy as a whole.
Main Tools Demand and Supply. Aggregate Demand and Aggregate Supply.
Objective Resource Allocation. Full employment and growth.
Assumption Assumes macro variables (like National Income) are constant. Assumes micro variables (like price of a single good) are constant.
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