Access free live classes and tests on the app
Download
+
Unacademy
  • Goals
    • AFCAT
    • AP EAMCET
    • Bank Exam
    • BPSC
    • CA Foundation
    • CAPF
    • CAT
    • CBSE Class 11
    • CBSE Class 12
    • CDS
    • CLAT
    • CSIR UGC
    • GATE
    • IIT JAM
    • JEE
    • Karnataka CET
    • Karnataka PSC
    • Kerala PSC
    • MHT CET
    • MPPSC
    • NDA
    • NEET PG
    • NEET UG
    • NTA UGC
    • Railway Exam
    • SSC
    • TS EAMCET
    • UPSC
    • WBPSC
    • CFA
Login Join for Free
avtar
  • ProfileProfile
  • Settings Settings
  • Refer your friendsRefer your friends
  • Sign outSign out
  • Terms & conditions
  • •
  • Privacy policy
  • About
  • •
  • Careers
  • •
  • Blog

© 2023 Sorting Hat Technologies Pvt Ltd

Watch Free Classes
  • About UPSC
    • Introduction to the CSE
    • Prelims Syllabus
    • Mains Syllabus
      • Essay Paper
      • GS Paper 1
      • GS Paper 2
      • GS Paper 3
      • GS Paper 4
    • Interview
    • Syllabus
    • Annual Calender
    • UPSC Booklists
    • Cut-Offs
  • Downloads
    • PYQs
      • Prelims
      • Mains
      • Previous Year paper analysis Analysis - Mains
    • Free Content
      • Free Content: Prelims : GS, CSAT
      • MCQs
      • Daily News Analysis: Date-wise
      • Important Schemes
      • IAS English Content
      • UPSC Unstoppable content
  • Free Video Lecture
    • Free Special Classes
    • YouTube Classes
      • UPSC Unstoppables
      • Unacademy IAS: English
      • Let's Crack UPSC CSE
      • Let's Crack UPSC CSE Hindi
      • World Affairs by Unacademy
  • Strategy
    • GS Mains
  • Courses
    • Foundation Courses
      • Foundation Program (Hinglish)
      • Foundation Classroom 2026 (Hinglish)
      • Online Classroom Program (English)
      • Online Classroom Program (Hindi)
      • NCERT Foundation Batch (Hindi)
      • Comprehensive Current Affairs Batch
    • Distance Learning Program
      • Prelims Test Series and Printed Notes (English)
      • Prelims Test Series and Digital Notes (English)
      • Mains Test Series and Printed Notes (English)
      • Mains Test Series and Digital Notes (English)
      • Mains Test Series and Printed Notes (Hindi)
    • Current Affairs
      • Daily Current Affairs
    • QEP Mains
    • UPSC CSE Optionals
  • Test Series
    • Prelims
    • Mains
  • Scholarship
    • UCSC
  • Topper's Guide
    • Topper's Notes
    • Topper's Mock Inteview Videos
      • 2022 Topper's
      • 2021 Topper's
    • Learn from Topper's
UPSC » UPSC CSE Study Materials » NCERT Notes for UPSC 2025 » Law of Demand

Law of Demand

In this article we will study about Demand Curve and the Law of Demand, Elasticity of Demand etc.

Table of Content
  •  

The amount of a product that a purchaser will purchase and can manage, given costs of merchandise and customer’s preferences and inclinations, is called interest for the ware.

Whenever one or more of these variables change, the quantity of the goods chosen by the consumer is likely to change as well. 

Demand Curve and the Law of Demand: 

  • The demand curve is a relation between the number of goods chosen by a consumer and the price of the goods. It shows the quantity demanded by the consumer at each price
  • Therefore, as the price rises, demand falls, and as the price falls, demand rises. The law of demand, in conjunction with the law of supply, is used to determine an efficient resource allocation as well as the optimal amount and price of goods
  • The consumer preference theory aids in understanding the combination of goods that a consumer may want while taking into account budgetary limits and market prices
  • The greatest explanation for this can be found in microeconomics, where demand functions are formed from indifference curves

Merchandise can be additionally characterized into:

Inferior Goods

For Items like low-quality food, coarse cereals, etc., the demand for them decreases as the income of the consumer increases due to now attained better affordability. Demand for Inferior Good moves in the opposite direction of the income of the consumer.

Giffen Goods

It refers to a good that people consume more of as the price rises. The interest for such descent can be conversely or emphatically identified with its cost. If the good can easily be substituted, then the demand would remain inversely related. However, in a scenario where substitution cannot work in line with income change, the demand for such a good would be positively related to its price.

Complementary Goods

These are those goods which are used together, in complement to each other like Tea and Sugar. Here, the demand for a good move in the opposite direction of the price of its complementary goods. The increase in the price of tea may reduce the demand for sugar as well.

The elasticity of demand: 

The elasticity of demand refers to the responsiveness of a commodity’s amount demanded to changes in one of the variables on which demand is dependent. In other words, it is the percentage change in quantity demanded divided by the percentage change in one of the variables influencing demand.

The following factors can influence demand:

  • The commodity’s price
  • Income of consumers
  • Price changes in associated commodities

Types of Elasticity of Demand

  • Price Elasticity

The price elasticity of demand is defined by the reaction of the quantity demanded to a change in a commodity’s price.

  • Income Flexibility

The income elasticity of demand is defined as the degree to which the amount demanded responds to changes in the consumer’s income.

  • Cross Elasticity

The cross elasticity of demand of a commodity X for another commodity Y is the change in demand of commodity X caused by a change in commodity Y’s price.

Conclusion

The Law of demand highlights the issue of demand and supply. It demonstrates how the value of different products changes depending on the demand from the consumers. The spending power of the consumer also adds to the factor of the law of demand. It also showcases some exceptions to certain products which defeat the fundamentals of the law of demand.

faq

Frequently asked questions

Get answers to the most common queries related to the UPSC Examination Preparation.

What is the law of demand?

The answer to what is the law of demand is that it is a basic law of ec...Read full

What are the exceptions to the law of demand?

The law of demand demands that all else be equal when the price of a good or service rises, the quantity demanded fa...Read full

Is the law of demand a fundamental principle of economics?

The law of demand is a fundamental principle of economics that asserts that consumer demand for a good rises when th...Read full

The answer to what is the law of demand is that it is a basic law of economics that states that all other things being equal, people will purchase more of a good when the price is lower and less of a good when the price is higher. There are several exceptions to this law, including changes in preferences, fashion, addiction and income changes.

 

The law of demand demands that all else be equal when the price of a good or service rises, the quantity demanded falls and vice versa. There are three main exceptions to the law of demand.

– When a good or service is addictive or habit-forming, the law of demand does not apply. You may want the product or service so much that you can’t control yourself, even though it is getting expensive to buy.

– When a good or service becomes more fashionable, the law of demand does not always apply. The number of people who want to buy a good or service can increase even if the price rises.

– When a good or service is of inferior quality and improvements are made, the law of demand does not always apply. Consumers may be willing to pay more for the improved goods or service, even though it costs more.

The law of demand is a fundamental principle of economics that asserts that consumer demand for a good rises when the price falls and vice versa. The law of demand is one of the most basic principles in economics, and it is what drives market forces.

Get started with your UPSC preparation today

Over 8L learners preparing with Unacademy

  • Fully organized study planner
  • Exceptional educators to learn from
  • Ask Mock tests, live quizzes & practice
View subscription plans

Notifications

Get all the important information related to the UPSC Civil Services Exam including the process of application, important calendar dates, eligibility criteria, exam centers etc.

Previous Year Question Papers for Optional Subjects
UPSC 2022 Prelims Results
UPSC Calendar
UPSC CSE GS Main Test Series 23
UPSC Cut Off Analysis
UPSC Dedicated Doubt Solving Sessions
UPSC Eligibility Criteria 2024
UPSC Exam Pattern – Check Prelims and Mains Exam Pattern
UPSC Free Doubt Solving Sessions – Doubt Darbaar
UPSC Marking Scheme
UPSC Prelims Answer Key 2022
UPSC Prelims Previous Year Question Paper
UPSC Prelims Result 2024 Out – Download Prelims Result
UPSC Preparation Books – Best Books for IAS Prelims and Mains
UPSC Syllabus 2024 PDF – IAS Prelims and Mains Syllabus
UPSC Toppers
See all

Related articles

Learn more topics related to NCERT Notes for UPSC 2025
Writing Tradition of Mesopotamia

Know about writing traditions of Mesopotamia and understand the Development of Writing, The System of Writing, Literacy, The Legacy of Writing etc.

Worship and Traditions

Symbols of Worship, Popular Traditions, New Religious Traditions, The Growth of Puranic Hinduism etc.

World Population: Trends in Population Growth

Resource, Technology and Population Growth, Spatial Pattern of Population Change, Three-Stage Model of Demographic Transition etc.

Wood’s Despatch and Report of William Adam

In this article we will study about Charles Wood's Despatch, The report of William Adam, and Consequences of New Rules, etc.

See all

Start you preparation with Unacademy

Access more than 469+ courses for UPSC - optional
Get subscription

Related links

  • UPSC Syllabus
  • UPSC PDF Notes
  • UPSC Printed Notes
  • UPSC Exam Pattern
  • UPSC Eligibility Criteria
  • UPSC Cut Off Analysis
  • UPSC Mains Exam
  • UPSC Prelims Exam
  • UPSC Marking Scheme
  • UPSC Toppers
  • UPSC Notes
  • UPSC Question Paper

UPSC Preparation

  • UPSC Preparation Books
  • Tips for UPSC Preparation
  • How to Prepare for UPSC without Coaching
  • UPSC Prelims Previous Year Question Paper
  • UPSC Question Paper 2022
  • UPSC Question Paper 2020
  • UPSC Question Paper 2019
  • UPSC Toppers Notes
testseries_upsc

Latest UPSC Notifications

  • UPSC Mains Paper Analysis
  • UPSC Mains Result 2022
  • UPSC 2023
  • UPSC Study Material
Latest Current Affairs
.
Company Logo

Unacademy is India’s largest online learning platform. Download our apps to start learning


Starting your preparation?

Call us and we will answer all your questions about learning on Unacademy

Call +91 8585858585

Company
About usShikshodayaCareers
we're hiring
BlogsPrivacy PolicyTerms and Conditions
Help & support
User GuidelinesSite MapRefund PolicyTakedown PolicyGrievance Redressal
Products
Learner appLearner appEducator appEducator appParent appParent app
Popular goals
IIT JEEUPSCSSCCSIR UGC NETNEET UG
Trending exams
GATECATCANTA UGC NETBank Exams
Study material
UPSC Study MaterialNEET UG Study MaterialCA Foundation Study MaterialJEE Study MaterialSSC Study Material

© 2025 Sorting Hat Technologies Pvt Ltd

Unacademy
  • Goals
    • AFCAT
    • AP EAMCET
    • Bank Exam
    • BPSC
    • CA Foundation
    • CAPF
    • CAT
    • CBSE Class 11
    • CBSE Class 12
    • CDS
    • CLAT
    • CSIR UGC
    • GATE
    • IIT JAM
    • JEE
    • Karnataka CET
    • Karnataka PSC
    • Kerala PSC
    • MHT CET
    • MPPSC
    • NDA
    • NEET PG
    • NEET UG
    • NTA UGC
    • Railway Exam
    • SSC
    • TS EAMCET
    • UPSC
    • WBPSC
    • CFA

Share via

COPY