Topics
Demand
- Introduction to Microeconomics and Macroeconomics
- Microeconomics
- Macroeconomics
- Macroeconomics Vs Microeconomics
- Introduction to Demand
- Meaning of Demand
- Features of Demand
- Types of Demand
- Determinants of Demand
- Demand Function
- Quantity Demanded and Demand
- Law of Demand
- Demand Schedule
- Demand Curve
- Individual Demand Curve to Market Demand Curve
- Slope of the Demand Curve
- Linear Demand Curve
- Reasons for the Downward Slope of the Demand Curve
- Importance of the Law of Demand
- Exceptions to the Law of Demand
- Movement Along the Demand Curve
- Change in Demand – Shift in Demand Curve
- Difference Between Extension and Increase in Demand
- Difference Between Contraction and Decrease in Demand
- Cross Price Effects
- Relationship Between Income and Demand
- Impact of Tastes and Preferences on Demand for a Commodity
- Industry Demand Vs Firm Demand
- Concept of Utility
- Cardinal Utility Analysis / Marginal Utility Analysis
- Types of Marginal Utility
- Total Utility and Marginal Utility
- Forms of Utility
- Features of Utility
- Relationship Between Total Utility and Marginal Utility
- Law of Diminishing Marginal Utility
- Exceptions of the Law of Diminishing Marginal Utility
- Importance of the Law of Diminishing Marginal Utility
- Consumer's Equilibrium through Cardinal Utility Approach
- Law of Equi-Marginal Utility
- Exceptions of the Law of Equi-marginal Utility
- Importance of the Law of Equi-marginal Utility
- Ordinal Utility Analysis/Indifference Curve Analysis
- Indifference Schedule
- Indifference Curve
- Indifference Map
- Marginal Rate of Substitution (MRS)
- Assumptions of Indifference Curve Analysis
- Properties of Indifference Curves
- Price Line or Budget Line
- Consumer's Equilibrium through Indifference Curve Approach
- Comparison of Utility Theory and Indifference Curve Theory
- Consumer's Equilibrium through Indifference Curve Approach
- Relationship Between Marginal Rate of Substitution and Marginal Utility
Microeconomic Theory
Theory of Income and Employment
- Introduction to Theory of Income and Employment
- Basic Model of Income Determination
- Aggregate Demand and Its Components
- Desired (Ex Ante) and Effective Demand (Ex Post)
- Propensity to Consume or Consumption Function
- Propensity to Save - Saving Function
- Relationship Between Consumption and Saving Functions
- Derivation of Saving Function
- Investment Expenditure
- Private and Public Investment
- Induced and Autonomous Investment
- Determination of Equilibrium Income and Output
- Concept of Aggregate Demand and Aggregate Supply
- Saving-investment Approach
- Investment Multiplier
- Investment Multiplier Defined
- The Multiplier Mechanism
- Graphic Presentation of Multiplier
- Derivation of Multiplier Formula
- Solved Numerical Problems on Propensity to Consume and Save, Equilibrium Income and Multiplier
- Meaning of Full Employment and Voluntary Unemployment
- The Concept of Full Employment
- Voluntary and Involuntary Unemployment
- Excess Demand
- Measures to Correct the Excess Demand
- Deficient Demand
- Measures to Correct Deficient Demand
- Deficient and Excess Demand and Business Cycle
- Aggregate Demand in a Three - Sector Economy
- Features of the Consumption Function
- Shifting of the Consumption Function
- Importance of the Consumption Function
- Gross Investment and Net Investment
- Paradox of Thrift
- Variables
- Partial and General Equilibrium
- Static Analysis
- Comparative Static Analysis
- Dynamic Analysis
- Difference between Static and Dynamic Analysis
- Psychological Law of Propensity to Consume
- Measures to Raise Propensity to Consume
- Importance of Investment
- Static Multiplier
- Dynamic Concept of Multiplier
- Limitations of Multiplier
- Leakages of Multipler
- Importance of Multiplier
- Types of Multiplier
- Balanced-Budget Multiplier
- Unemployment Associated with Full Employment
- Inflationary Gap
- Foreign Trade Policy
Elasticity of Demand
- Introduction to Elasticity of Demand
- Meaning and Types of Elasticity of Demand
- Price Elasticity of Demand
- Classification of Price Elasticity - Degrees of Price Elasticity of Demand
- Methods of Measuring Price Elasticity of Demand
- Percentage or Proportionate Method
- Total Expenditure Method
- Point Method (Geometric Method)
- Arc Elasticity of Demand
- Revenue Method
- Numerical Problems of Price Elasticity of Demand
- Factors Affecting Price Elasticity of Demand
- Importance of Elasticity of Demand
- Income Elasticity of Demand
- Types of Income Elasticity of Demand
- Importance of Income Elasticity
- Cross Elasticity of Demand
- Туpes of Cross Elasticity of Demand
- Limitations of Cross Elasticity of Demand
- Importance of Cross Elasticity of Demand
Money and Banking
Supply
- Concept of Supply
- Individual and Market Supply
- Distinction Between Supply and Stock
- Determinants of Supply
- Supply Function
- Law of Supply
- Supply Schedule
- Supply Curve
- Derivation of Market Supply Curve From Individual Supply Curves
- Explanation of the Law of Supply
- Time Period and Supply
- Exceptions to the Law of Supply
- Movement Along the Supply Curve Or Expansion and Contraction of Supply
- Shift of the Supply Curve or Change in Supply
- Expansion of Supply and Increase in Supply
- Contraction of Supply and Decrease in Supply
- Elasticity of Supply
- Meaning and Types of Elasticity of Demand
- Price Elasticity of Supply
- Categories (Degrees) of Elasticity of Supply
- Measurement of Elasticity of Supply > Percentage Method
- Measurement of Elasticity of Supply > Geometric or Point Method
- Determinants of Elasticity of Supply
- Importance of Elasticity of Supply
Market Mechanism
- Introduction to Market Mechanism
- Basic Concepts of Equilibrium and Equilibrium Price
- Equilibrium Price and Quantity in a Competitive Market
- Changes in Equilibrium
- Effects of Changes (Shifts) in Demand on Equilibrium Price and Equilibrium Quantity
- Effects of Changes (Shifts) in Supply on Equilibrium Price and Equilibrium Quantity
- Effects of Simultaneous Changes (Shifts) in Demand and Supply
- Some Special Cases of Equilibrium
- Importance of the Element in the Determination of Price
- Applications of Tools of Demand and Supply Price Control
- Mаximum Price Legislation or Price Ceiling and Rationing
- Minimum Price Legislation or Floor Price
- Important Areas of Applications of Tools of Demand and Supply Curves
- Meaning of Perfect Competition
- Assumptions and Conditions of Perfect Competition
- Pure and Perfect Competition
- Time Element in the Theory of Price Determination
- Determination of Equilibrium Prices
- Normal Price and Law of Returns
- Comparison between Market Price and Normal Price
- Practical Applications of Tools of Demand and Supply Analysis
Balance of Payments and Exchange Rate
Public Finance
Concepts of Production
- Concept of Production
- Product
- Factors of Production
- Production Function
- Short-run and Long-run
- Features of Production Function
- Types of Production Functions
- Some Basic Concepts - Total, Average and Marginal Physical Products
- Relationship between Average Product (AP) and Marginal Product (MP)
- Relationship between Total Product (TP) and Marginal Product (MP)
- Returns to a Factor - Laws of Returns to a Variable Factor
- Law of Variable Proportions
- Statement of the Law of Variable Proportions
- Assumptions of the Law of Variable Proportions
- Illustration of the Law of Variable Proportions
- Three Stages of Production
- Explanation of the Law of Variable Proportions
- Stages of Operation and the Decision to Produce
- Conditions Or Causes of Applicability
- Applicability of the Law of Variable Proportions
- Changes in Production
- Returns to a Factor or Law of Returns
- Law of Variable Proportions and Returns to Scale Compared
- Variation of Output in the Long Run - Returns to Scale
- Scale of Production
- Concept of Indivisibility
- Economies of Scale
- Diseconomies of Scale
National Income
Cost and Revenue
- Introduction to Cost of Production
- Money Cost Or Accounting Cost / Explicit Cost
- Economic Cost
- Opportunity Cost
- Real Cost
- Private and Social Cost
- Fixed Cost and Variable Cost
- Different Cost Concepts
- Total Cost Curves
- Average Cost Curves
- Marginal Cost (MC)
- Relationship between Average and Marginal Cost
- Long-Run Cost Curves
- Long-run Average Cost (LAC) Curve
- Long-run Marginal Cost (LMC) Curve
- LAC Curve U-shaped - Economies and Diseconomies of Scale
- Numerical Problems Long-run Cost Curves
- Revenue Concepts
- Behaviour of Revenue Under Different Market Structures
- Relationship Between Total, Average and Marginal Revenues Under Perfect Competition
- Relationship Between Total, Average and Marginal Revenue Under Imperfect Competition
- Significance of Revenue Curve
- Numerical Problems of Revenue
Main Market Forms and Equilibrium of a Firm
- Concept of Market
- Market Structure
- Factors Determining Market Forms
- Perfect Competition
- Features of Perfect Competition
- Pure and Perfect Competition
- Monopoly
- Features of Monopoly
- Monopolistic Competition
- Features of Monopolistic Competition
- Oligopoly
- Features of Oligopoly
- Monopsony
- Features of Monopsony
- Duopoly
- Characteristics of Duopoly
- Bilateral Monopoly
- Other Forms of Market
- Factors Determining Market / Extent of Market
- Demand Curves of Firms under Different Market Forms
- Comparison between different forms of market
- Difference Between Imperfect Competition and Monopolistic Competition
- Firm : An Economic Entity
- Profit Maximisation Objective
- The Definition of Profits
- Rules for Profit-Maximisation
- Producer's (Firm's) Equilibrium: Total Revenue and Total Cost Approach
- Producer's (Firm's) Equilibrium: Marginal Revenue and Marginal Cost Approach
- Short-run Equilibrium
- Long-run Equilibrium
- Firm is a Price Taker, Not a Price Maker
- Equilibrium of Industry
- Difference Between Firm and Industry's Equilibrium
- Meaning of a Producer
- Producer's Equilibrium under Perfect Competition
- Determination of Price and Equilibrium Under Monopoly
- Monopoly Equilibrium and Laws of Costs
- Price Discrimination or Discriminating Monopoly
- Price and Output Discrimination Under Discriminating Monopoly
- Measures of Monopoly Power
- Nature of Demand and Cost Curves
- Equilibrium Price and Output under Monopolistic Competition
- Group Equilibrium in Monopolistic Competition
- Product Differentiation
- Selling Costs
- Equilibrium with Selling Costs
- Price and Output Under Oligopoly Indeterminate
- Price and Output Determination under Oligopoly
- Price Rigidity-Sweezy's Kinky Demand Curve Model or Equilibrium under Independent Action
- Reasons for Price Stability
- Cournot's Model
- Collusive Oligopoly
- Mergers
- Definition: Frictional Unemployment
- Concept of Frictional Unemployment
- Definition: Structural Unemployment
- Concept of Structural Unemployment
- Concept of Seasonal Unemployment
- Concept of Technical Unemployment
Definition: Frictional Unemployment
According to Gardner, “Frictional Unemployment is the unemployment associated with the changing of jobs in dynamic economy”.
Frictional Unemployment
In simple words, it's the gap time between leaving one job and starting a new one.
Why does it happen?
- A worker quits their job to look for a better one ("greener pastures")
- A fresh graduate just enters the job market and is searching for their first job
- Workers don't have information about available jobs nearby
- Workers can't or won't move to where jobs are (immobility of labour)
- Factories temporarily stop due to power cuts, raw material shortages, or broken machinery
Key features
- Short-term (days to a few months)
- Usually voluntary — the worker chose to switch
- Normal and healthy in a growing economy
Easy Example
Rahul finishes his B.Com from a Mumbai college. He spends 6 weeks sending applications and attending interviews before he lands a job. During those 6 weeks, he is frictionally unemployed.
Definition: Structural Unemployment
According to Gardner, “Structural unemployment is the unemployment that results from the long term decline of certain industries.”
Structural Unemployment
In simple words: It happens when the economy itself changes — old industries shut down and workers with old skills can't fit into new ones.
Why does it happen?
- Workers were trained for old industries (like handloom weaving), but those skills are no longer needed
- There is a shortage of capital, land, or infrastructure, so even willing workers have no work
- Production methods change permanently — whole factories close down for good
- The economy shifts from agriculture → manufacturing → services, but workers don't shift with it
Key features
- Long-term — can last for years
- Often, involuntary workers want to work but can't
- Cannot be fixed just by spending more money — workers need retraining
Easy Example
When power looms were introduced in textile factories, handloom weavers lost their jobs permanently. Their skill — weaving by hand — was no longer needed. This is structural unemployment.
Seasonal Unemployment
Meaning
This type comes and goes with the seasons. Some industries only have work during certain times of the year — when that season ends, workers become unemployed.
In simple words: No season = no work = seasonal unemployment.
Why does it happen?
- Weather changes affect industries like farming, tourism, and outdoor construction
- Fashion and taste change — demand for certain goods rises and falls by season
- Certain products are only needed at certain times of the year
Key features
- Predictable and recurring — both workers and employers know it will happen
- Temporary — work comes back when the season returns
- Considered compatible with full employment because it's a natural, expected pattern
Easy Examples
Technical Unemployment
Meaning
This happens when machines or new technology replace human workers.
In simple words: A machine now does the job that a human used to do, so that the human loses their job.
Why does it happen?
- Factory owners install machines that do the work of many people
- Software and computers replace manual work, such as data entry or calculations
- AI and automation are increasingly replacing routine and even complex tasks
Key features
- Can be long-term — workers need to learn new skills to get back to work
- Often, involuntary workers did not choose to lose their jobs
- BUT: In the long run, new technology also creates new types of jobs (this is why the Luddite Fallacy is wrong)
Easy Examples
