Interpreting PED & YED

Interpreting Price Elasticity of Demand Data

Understanding the price elasticity of demand is helpful for businesses. This is because they can understand how a price change will impact their sales.

Price elasticity of demand

Price elasticity of demand (PED) measures the responsiveness of quantity demanded to a change in price.
Businesses can use price elasticity of demand to understand how the quantity demanded by customers will change in response to price.

Formula for PED

PED = (% change in quantity demanded)÷ (% change in price)

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PED coefficients

The price elasticity of demand coefficient (number) is usually negative as an increase in price will result in a decrease in quantity demanded and a decrease in price will result in an increase in quantity demanded.
The larger the price elasticity of demand coefficient (number) the greater the responsiveness of quantity demanded to a change in price.

Interpreting PED

If the price elasticity of demand is less than 1 (whether positive or negative) then this is described as price inelastic. This means that a change in price will lead to a change in quantity demanded which is less than the change in price.
If the price elasticity of demand is greater than 1 (whether positive or negative) then this is described as price elastic. This means that a change in price will lead to a change in quantity demanded which is greater than the change in price.

Changing PED

For example, the price elasticity demand for petrol is relatively inelastic as a change in price may not affect the quantity demanded of fuel as customers still need to purchase this product as it may be a necessity.

Using elasticity of demand as data

Marketing managers can use price elasticity of demand and income elasticity of demand to forecast and predict the impact of changes in price and income on the quantity of the business’ goods demanded by consumers.
- Using elasticity of demand allows marketing managers to act, such as advertising, to target customers if they think quantity demanded is likely to decrease.

Interpreting Income Elasticity of Demand Data

Understanding the income elasticity of demand is helpful for businesses. This is because they can understand how an income change will impact their sales.

Income elasticity of demand

Income elasticity of demand (YED) measures the responsiveness of quantity demanded to a change in consumer income.
Businesses can use income elasticity of demand to understand how the quantity demanded by customers will change in response to income.

Formula for YED

YED = (% change in quantity demanded) ÷ (% change in income)

YED coefficients

The larger the income elasticity of demand coefficient (number) the greater the responsiveness of quantity demanded to a change in income.
If the coefficient is positive, an increase in income will increase demand and a fall in income will decrease demand.
If the coefficient is negative, an increase in income will decrease demand and a fall in income will increase demand.

Interpreting YED

If the income elasticity of demand is less than 1 then this is described as inelastic. This means that a change in income will lead to a change in quantity demanded which is less than the change in income.
If the income elasticity of demand is greater than 1 then this is described as elastic. This means that a change in income will lead to a change in quantity demanded which is greater than the change in income.

Change in YED

For example, the income elasticity demand for premium cars is relatively elastic as consumers may decide they cannot purchase a new vehicle if their income reduced, so quantity demanded is likely to change by more than the change in income.

1What is Business?

1.1Understanding the Nature of Business

1.1.1Why Businesses Exist

1.1.2Business Aims & Objectives

1.1.3Revenue & Costs

1.1.4A-A* (AO3/4) - Cost Leadership

1.1.5Profit

1.1.6End of Topic Test - The Nature of Business

1.2Understanding Different Business Forms

1.2.1Sole Traders

1.2.2Limited Liability

1.2.3Non-Profit

1.2.4Franchising

1.2.5A-A* (AO3/4) - Franchising at Blockbuster

1.2.6Key Business Terms

1.2.7Shareholders

1.2.8End of Topic Test - Different Businesses

1.3External Environments

1.3.1External Environments

2Managers, Leadership & Decision Making

2.1Understanding Management

2.1.1Managers

2.1.2(2024 EXAMS ONLY) Blake Mouton

2.1.3Management Theories

2.1.4End of Topic Test - Management

2.2Understanding Management Decision Making

2.2.1Scientific Decision Making

2.2.2Intuition Decision Making

2.2.3Influences on Decision Making

2.2.4A-A* (AO3/4) - Taylorism & Jack Welch

2.2.5End of Topic Test - Management Decisions

2.3Understanding Stakeholders

2.3.1Stakeholders

3Decision Making to Improve Marketing Performance

3.1Decision Making to Improve Marketing Performance

3.1.1Setting Marketing Objectives

3.2Understanding Markets & Customers

3.2.1Market Calculations

3.2.2Market Research

3.2.3Market Mapping

3.2.4Methods of Market Research

3.2.5Interpreting PED & YED

3.3Market Segmentation, Targeting & Positioning

3.3.1Segmentation

3.3.2Niche & Mass Markets

3.4Marketing Mix

3.4.1Marketing Mix

3.4.2Product Decisions

3.4.3Pricing Decisions & Price Skimming

3.4.4Pricing Decisions & Price Penetration

3.4.5A-A* (AO3/4) - Pricing & Competition

3.4.6Promotional Decisions

3.4.7Promotional Decisions 2

3.4.8Promotional Decisions 3

3.4.9Distribution Decisions

3.4.10Distribution Decisions 2

3.4.11Digital Marketing

3.4.12Evaluating Digital Marketing

3.4.13A-A* (AO3/4) - The Marketing Mix & Promotion

4Decision Making to Improve Operational Performance

4.1Setting Operational Objectives

4.1.1Setting Operational Objectives

4.2Analysing Operational Performance

4.2.1Operations Data

4.2.2A-A* (AO3/4) - The Problem with Operations Data

4.3Increasing Efficiency & Productivity

4.3.1Capacity

4.3.2Productivity & Efficiency

4.3.3Technology & Efficiency

4.4Improving Quality

4.4.1Importance of Quality

4.4.2Measuring & Identifying Quality

4.4.3Total Quality Management

4.4.4Evaluating Total Quality Management

4.4.5A-A* (AO3/4) - Toyota Production System

4.5Managing Inventory & Supply Chains

4.5.1Improving the Supply Chain

4.5.2Inventory

4.5.3Outsourcing

5Decision Making to Improve Financial Performance

5.1Financial Objectives

5.1.1Setting Financial Objectives

5.1.2Influences on Financial Objectives

5.2Analysing Financial Performance

5.2.1Cash-Flow & Budgets

5.2.2Break-Even & Profitability Analysis

5.3Sources of Finance

5.3.1Internal Sources of Finance

5.3.2External Sources of Finance

5.3.3Factors for Financing

5.3.4A/A* (AO3/4) - Debt

5.4Improving Cash Flow & Profit

5.4.1Improving Cash Flow & Profits

6Improving Human Resource Performance

6.1Human Resource Objectives

6.1.1Setting Human Resource Objectives

6.1.2Human Resource Management

6.2Analysing Human Resource Performance

6.2.1Analysing Human Resource Performance

6.2.2Analysing Human Resource Performance 2

6.2.3Analysing Human Resource Performance 3

6.3Improving Organisational Design

6.3.1Job Design

6.3.2(2024 EXAMS ONLY) Hackman & Oldham's Model

6.3.3Organisational Design

6.3.4Human Resource Flow

6.3.5A-A* (AO3/4) - Amazon & Netflix Org Design

6.4Improving Motivation & Engagement

6.4.1Motivating & Engaging Employees

6.4.2Taylor's Theory

6.4.3Maslow's Theory

6.4.4Herzberg's Theory

6.4.5Different Incentives

6.4.6Evaluating Incentives

6.5Improving Employer-Employee Relations

6.5.1Improving Employer-Employee Relations

6.5.2A-A* (AO3/4) - The Winter of Discontent

7Analysing the Strategic Position of a Business

7.1Mission, Corporate Objectives, Strategy

7.1.1Business Mission & Corporate Objective

7.1.2Mission, Corporate Objectives & Strategy

7.1.3SWOT Analysis

7.1.4A-A* (AO3/4) - SWOT Analysis

7.2Financial Ratio Analysis

7.2.1Financial Ratios

7.3Overall Performance

7.3.1Non-Financial Data

7.3.2Core Competences

7.3.3(2024 EXAMS ONLY) Kaplan and Norton's Balanced Sco

7.3.4Assessing Business Performance

7.3.5A-A* (AO3/4) - Assessing Financial Performance

7.4Political & Legal Change

7.4.1Political & Legal Change

7.5Economic Change

7.5.1Economic Environment

7.5.2Business Considerations from Globalisation

7.5.3A-A* (AO3/4) - Interest Rates in the UK

7.6Social & Technological Environment

7.6.1Social & Technological Environment

7.6.2Lifestyle & Technological Environment

7.6.3Corporate Social Responsibility

7.7Competitive Environment

7.7.1Porter's Five Forces

7.7.2A-A* (AO3/4) - The 5 Forces

7.8Investment Appraisal

7.8.1Investment Appraisal

8Choosing Strategic Direction

8.1Choosing Areas of Competition

8.1.1Choosing Areas of Competition

8.1.2A-A* (AO3/4) - Diversification

8.2Choosing How to Compete

8.2.1Choosing How to Compete

8.2.2(2024 EXAMS ONLY) Bowman's Strategic Clock

9How to Pursue Strategies

9.1Change in Scale

9.1.1Growth & Retrenchment

9.1.2Challenges of Growth

9.1.3(2024 EXAMS ONLY) Growth Models

9.1.4A-A* (AO3/4) - Diseconomies of Scale

9.2Assessing Innovation

9.2.1Assessing Innovation

9.3Assessing Internationalisation

9.3.1Internationalisation

9.3.2Sourcing Resources & Entering Markets

9.3.3A-A* (AO3/4) - Internationalisation in Guatemala

9.3.4Managing Internationalisation

9.3.5(2024 EXAMS ONLY) Bartlett & Ghosal's Model

9.3.6Impact of Internationalisation

9.4Digital Technology

9.4.1Assessing Use of Digital Technology

9.4.2Impact of Digital Technology

10Managing Strategic Change

10.1Managing Change

10.1.1Managing Change

10.2Managing Organisational Culture

10.2.1Managing Organisational Culture

10.2.2(2024 EXAMS ONLY) Hofstede's Model

10.2.3Organisational Structures

10.3Managing Strategic Implementation

10.3.1Managing Strategic Implementation

10.4Problems with Strategy

10.4.1Problems with Strategy

10.4.2A-A* (AO3/4) - Divorce of Ownership from Control

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