Inelastic vs Elastic Demand: Main Differences & Examples

By Thomas Bennett Financial expert at Priceva
Published on September 18, 2023
Updated on December 11, 2024
Understanding the elasticity of demand and inelastic demand is vital for businesses looking to optimize their pricing strategies. With the fluctuating nature of consumer behavior, it's essential to grasp how price changes affect demand. This comprehensive article aims to explore key aspects, formulas, and examples that encompass these critical economic concepts.

Definition of Price Elasticity of Demand

Elasticity of demand is a critical measure in economics, indicating how the quantity demanded of a good or service responds to a change in its price. Essentially, it quantifies the impact of price shifts on consumer demand. This measure helps businesses adjust their pricing strategies effectively, enabling them to respond to market conditions in real-time and maximize profitability.

Understanding the elasticity of demand is not just theoretical; it has practical applications in various industries, from retail to energy sectors. Companies that can accurately gauge demand elasticity can adjust their production schedules, marketing efforts, and pricing models to better align with consumer behavior, thereby optimizing both revenue and customer satisfaction.

Elasticity of Demand Formula

The formula for calculating the elasticity of demand is straightforward: it's the percentage change in quantity demanded divided by the percentage change in price. This calculation provides a numerical value that reveals how sensitive or insensitive demand is to changes in price.

Price Elasticity of Demand (PED) = (% Change in Quantity Demanded) / (% Change in Price).


The higher the elasticity, the more responsive consumers are to price changes, and vice versa. This information is invaluable for businesses, as it informs critical decisions about pricing strategies. For instance, products with higher elasticity may require careful pricing adjustments, especially during promotional or seasonal changes, to avoid significant revenue losses.

Four Main Types of Price Elasticity of Demand

Understanding the types of elasticity of demand is essential for analyzing market behavior and crafting effective pricing strategies. Each type—price elasticity, income elasticity, cross elasticity, and advertisement elasticity—focuses on a specific factor influencing quantity demanded and helps businesses adapt to market dynamics.

1. Price Elasticity of Demand
Price elasticity of demand measures the responsiveness of quantity demanded to a change in price. It’s the most widely recognized type of elasticity, calculated using the percentage change in quantity demanded divided by the percentage change in price.

Elastic products see significant changes in demand with minor price shifts (e.g., luxury goods).
Inelastic products show little change in demand despite large price variations (e.g., essential goods like medicines).
Understanding this elasticity helps businesses identify whether to increase or decrease prices to maximize total revenue, based on whether demand is elastic or inelastic.

2. Income Elasticity of Demand
Income elasticity examines how changes in consumer income affect the demand curve for a product or service. Products are categorized based on this elasticity:

Normal goods: Demand increases as income rises.
Inferior goods: Demand decreases when consumers have higher incomes (e.g., budget brands).
This measure helps businesses understand the impact of economic conditions on their revenue and adjust their product mix accordingly.

3. Cross Elasticity of Demand
Cross elasticity analyzes how the price change of one product impacts the demand for another. It’s particularly relevant for complementary and substitute goods:

Positive cross elasticity: Demand for one product increases when the price of a substitute increases (e.g., tea and coffee).
Negative cross elasticity: Demand decreases for one product when the price of its complement rises (e.g., cars and gasoline).
Businesses can use this elasticity to anticipate market responses to pricing changes in related products and optimize their pricing strategies.

4. Advertisement Elasticity of Demand
Advertisement elasticity evaluates the effectiveness of advertising in influencing demand. It measures the percentage change in quantity demanded resulting from a change in advertising spend. High advertisement elasticity indicates that marketing efforts significantly impact sales.

For example, investing in targeted campaigns can boost demand for non-essential or luxury items. Conversely, for products with low advertisement elasticity, promotional efforts may yield minimal impact, suggesting a focus on pricing adjustments instead.

How These Types Inform Business Strategy
By leveraging these types of elasticity, companies can:
  • Calculate price elasticity to determine optimal pricing points.
  • Use income elasticity insights to adjust product offerings during economic shifts.
  • Analyze cross elasticity to refine product bundles and respond to competitor pricing.
  • Evaluate advertisement elasticity to optimize marketing spend and maximize ROI.
  • These insights, supported by tools like Priceva’s analytics solutions, help businesses make data-driven decisions and remain competitive in a dynamic market.

Examples of Products with Elastic Demand

Products with elastic demand are those for which consumer demand significantly shifts due to changes in price. Typical examples include luxury cars, dining at high-end restaurants, and first-class airline tickets. When the price for these goods or services increases, the demand often decreases substantially. Conversely, when prices drop, demand generally surges.

This high sensitivity to price changes makes such products a prime target for promotional and seasonal pricing strategies. Businesses must tread carefully, however, as drastic price reductions might lead to diminished perceived value, while sharp price increases could deter potential customers.

Real-Life Examples: Elastic and Inelastic Goods

Understanding elasticity of demand in real-world scenarios provides valuable insights into pricing strategies and market behavior. Elastic and inelastic goods exhibit distinct patterns on the demand curve, illustrating how price changes influence quantity demanded and total revenue.

Elastic Goods
Elastic products are those where even a small percentage change in price leads to a significant change in quantity demanded. For instance, luxury goods like designer handbags or non-essential services like premium streaming subscriptions often exhibit high price elasticity of demand. If the price of the good increases, consumers are likely to reduce their purchases significantly because these products are seen as discretionary.

  • Branded smartphones (e.g., iPhone) consumers can delay or forgo purchases if prices rise.
  • Premium clothing – shoppers may opt for alternative or more affordable brands.
  • Soft drinks – highly competitive and easily substitutable in the market.

Inelastic Goods
In contrast, inelastic goods are those where demand is relatively unresponsive to price changes. Necessities such as gasoline, prescription medications, and utilities are prime examples. Even when the price of the good increases, the quantity demanded remains stable because consumers cannot easily find substitutes.

  • Essential medicines – critical for health, with no feasible alternatives.
  • Basic food items (e.g., salt, bread) – staples that consumers consistently purchase.
  • Gasoline – a necessary product for daily commuting and logistics.

By recognizing whether a product is elastic or inelastic, businesses can craft pricing strategies that align with consumer behavior. For example, they can use Priceva’s analytics tools to track price changes, analyze historical price elasticity measures, and optimize pricing strategies based on supply or demand trends. This data-driven approach helps identify points of pricing advantage, ensuring profitability regardless of market conditions.

Definition of Inelasticity of Demand

Inelastic demand means a scenario where the quantity demanded of a product or service is relatively insensitive to changes in its price. Such cases usually apply to necessities—goods or services that consumers will purchase regardless of price fluctuations. These include items like basic food supplies, water, and medicine.

Because these are considered essential products, even significant price hikes will not deter most consumers from buying them. This makes inelastic type demand particularly relevant for policy-makers and businesses involved in providing basic services or essential goods. While they might have more leeway in setting prices, they also have a societal obligation to keep these goods accessible.

Examples of Products with Inelastic Demand

After we define what inelastic demand means, let's explore its examples.
Common examples of products characterized by this type of demand are:
  • prescription medications,
  • basic food items like bread and milk,
  • and utility services such as electricity and water.
Despite changes in their prices, these products generally see only minor shifts in demand.

For instance, regardless of the price of insulin, diabetics will still need to purchase it, making it an inelastic product. Similarly, price hikes in utility services may not deter usage substantially since they are considered essential. Businesses in these sectors have different considerations for pricing strategies, as their products are often less subject to the whims of consumer preference and more by necessity.

Key Divergences Between Elastic Demand and Inelastic Demand

Both the demands are different in several key aspects. Firstly, they vary in their sensitivity to price changes. Elastic demand is highly sensitive, with significant fluctuations in demand when prices alter. In contrast, an inelastic one is far less responsive to pricing changes.

Another major difference is the level of consumer necessity. Products with the elasticity of demand are often considered luxury items or services that people can live without, whereas products with inelastic demand are usually necessities that consumers cannot easily forgo.

These factors significantly impact business pricing strategies. For products with elastic demand, businesses must be far more cautious in how they adjust prices as it could substantially affect demand and ultimately, profitability. On the other hand, inelastic products give companies more pricing power, though this comes with increased scrutiny and potential regulatory oversight.

What Makes a Product Elastic?

A product is considered elastic when a small change in its price results in a significant change in quantity demanded. This occurs when consumers can easily switch to substitutes or when the product is non-essential. For example, if the price of a luxury good like designer clothing increases slightly, demand often drops significantly because customers can opt for alternatives.

The price elasticity of demand is typically greater than 1 for elastic products, meaning the percentage change in quantity demanded exceeds the percentage change in price. Products with a flatter demand curve demonstrate higher elasticity, as they are more sensitive to price shifts. For example, non-essential goods such as electronics or services like premium subscriptions tend to exhibit elastic demand.

Elasticity often depends on the time frame. In the short term, consumers may tolerate a price increase, but over time, they may find substitutes or forgo the purchase entirely. The law of demand supports this, highlighting that as prices rise, demand decreases significantly for elastic goods. Businesses dealing in elastic products must carefully calculate pricing strategies to maintain total revenue, leveraging tools to measure price elasticities effectively.

What Makes a Product Inelastic?

A product is considered inelastic when changes in price have little effect on the quantity demanded. This typically applies to essential goods or services with few substitutes. For instance, gasoline and life-saving medications are prime examples of inelastic goods because consumers will continue purchasing them even if prices rise significantly.

The price elasticity of demand for inelastic products is less than 1, indicating that the percentage change in price outweighs the percentage change in quantity demanded. These products often feature a steeper demand curve, reflecting low sensitivity to price changes. For example, if the price of a good like electricity increases by 10%, the quantity demanded may decrease by only 2%.

Inelastic demand is common for basic goods and services critical to daily life, where consumption cannot easily be reduced or delayed. Businesses selling inelastic products have more flexibility to increase the price without significant reductions in revenue. However, understanding total revenue implications and balancing value perceptions are critical. Using tools to analyze price change effects and accurately calculate price elasticity ensures optimal pricing strategies for inelastic goods.

Contrasts Between Elastic and Inelastic Demand

In order to better understand the nuances between price elasticity of demand and its opposite, it's helpful to look at a side-by-side comparison. This can provide quick insights into how they differ in multiple aspects, not just in their sensitivity to price changes.

Feature

Elastic Demand
Inelastic Demand
Price Sensitivity
High
Low
Necessity Level
Luxury or Optional
Essential
Example
Luxury Cars
Prescription Medications
Pricing Strategy
Promotional & Seasonal Pricing
Steady or Regulated Pricing
Consumer Behavior
Price Shopping Common
Price Ignored for Necessities
Impact on Revenue
Sensitive to Changes
Stable Despite Changes
Income Elasticity
Affected by Consumer Income
Generally Unaffected
Effect of Economic Downturn
Demand Decreases Significantly
Demand Remains Stable
When considering elastic demand, businesses often engage in promotional or seasonal pricing strategies. These are products for which consumers are likely to shop around, comparing prices before making a purchase. Revenue from these products is sensitive to changes in price, and they often have multiple substitutes. Elastic demand is also often affected by consumer income levels and is susceptible to economic downturns.

On the other hand, products with inelastic demand often have a steady or regulated pricing strategy. These are essential items that consumers need, regardless of the price. There are usually few or no alternative options, making them less sensitive to income levels and more stable during economic downturns. Businesses have more leeway in setting prices for these items but must be wary of the ethical and sometimes regulatory implications of doing so.

Factors that Impact Elasticity of Demand

Understanding the factors that influence elasticity is crucial for businesses aiming to craft effective pricing strategies.

1. Price Changes: The very essence of elasticity revolves around how demand reacts to price fluctuations. For elastic products, even a slight price change can have a significant impact on demand. In contrast, inelastic goods can withstand larger price adjustments without losing customers.

2. Income Levels: The overall wealth and income of a consumer play a role, particularly for luxury or non-essential goods. A change in income levels often leads to adjustments in consumption patterns for elastic goods.

3. Substitute Availability: The availability of alternative products affects the elasticity of demand. When multiple substitutes are available, demand tends to be more elastic because consumers can easily switch to another product.

4. Consumer Preferences: Brand loyalty or emotional attachment can make a product's demand more inelastic. When consumers are committed to a particular brand, they are less likely to switch, even if prices increase.

5. Market Competition: A competitive market often leads to more elastic demand as consumers have more options to consider, thus increasing sensitivity to changing of price. On the other hand, monopoly or less competitive markets often result in more inelastic demand.

How it Impacts on Pricing and Profit?

The concepts of elasticity and inelasticity of demand have direct implications on a company's pricing strategies and its bottom line.

For products with inelastic demand, businesses have the leeway to increase prices without seeing a substantial loss in sales volume. This is often seen in the pharmaceutical industry, where essential medications are both price inelastic and indispensable.

Conversely, if a product has elastic demand, companies need to be very strategic about pricing. Small price increases can lead to substantial drops in quantity, which could result in loss of market share or revenue. Hence, businesses dealing with such products often opt for promotional or seasonal pricing to lure customers.

How to Use Elasticity Economics to Increase Profits?

Leveraging the principles of elasticity economics can significantly enhance a business’s profitability by optimizing pricing strategies based on price elasticity of demand. The first step is to analyze whether a product or service is elastic or inelastic. Businesses can use this information to predict how a change in price will influence quantity demanded and, ultimately, total revenue.

For elastic products, where demand is highly sensitive to price, lowering prices can lead to a significant percentage change in quantity demanded, resulting in higher revenue. For example, a company selling an elastic product like non-essential consumer goods might reduce prices slightly to attract more buyers and increase overall sales volume. Here, understanding the demand curve is crucial to pinpoint the optimal price point that generates the maximum return.

In contrast, businesses selling inelastic goods—essential items like medicine or utilities—can safely increase the price without causing a major reduction in sales. The law of demand holds, but the steep demand curve for such goods means that quantity demanded remains relatively stable despite price hikes. This strategy boosts revenue and value capture for products where customers have limited alternatives.

Using tools to measure price elasticities and calculate price elasticity accurately helps businesses make informed decisions. For example, Priceva’s analytics software tracks price changes, estimates demand responsiveness, and identifies the optimal price for maximizing profits. By examining historical data and using elasticity formulas, businesses can adjust their strategies dynamically, catering to both supply or demand fluctuations and customer preferences.

Ultimately, businesses that integrate elasticity economics into their pricing strategy can align their prices with customer demand measures, gaining a competitive edge while maximizing profit potential.

Summary

Understanding the nuances of elasticity and inelasticity of demand is more than an academic exercise; it's a business imperative. It forms the backbone of effective pricing, which ultimately impacts profitability. Whether you're dealing with elastic or inelastic goods, getting the pricing right is key. If this sounds daunting, you don’t have to go it alone. Priceva’s team of pricing strategy experts are here to guide you every step of the way. Reach out today and let's take your business to the next level.

How Priceva’s Tools Can Help Businesses Navigate Elastic and Inelastic Demand

For products with elastic demand, where pricing is highly sensitive to changes in market conditions, Priceva’s price monitoring and competitor analysis tools can be game-changers. These tools allow businesses to monitor competitors' prices in real-time and adjust their own pricing accordingly. For example, if competitors lower prices on a product that is price-sensitive, Priceva’s system can alert you to make quick adjustments, ensuring your prices remain competitive and attractive to price-conscious customers.

On the other hand, for products with inelastic demand, where customers are less sensitive to price changes, businesses can leverage Priceva’s repricing and historical price analysis tools to maintain or strategically increase prices without sacrificing sales volume. The repricing engine enables businesses to set pricing rules based on historical data, ensuring that price increases do not result in unexpected demand drops.

In both scenarios, Priceva’s advanced price optimization tools allow businesses to implement data-driven strategies that maximize profitability. By understanding how different products respond to price changes, businesses can avoid the pitfalls of price erosion and ensure they are hitting the sweet spot between maintaining market competitiveness and preserving brand value.

FAQ

What's the distinction between elastic and inelastic demand?

Elastic demand is highly responsive to price fluctuations. Even small changes in price can significantly affect the quantity demanded. On the other hand, inelastic demand is largely unresponsive to changes of price, and consumers will generally continue to purchase these goods or services regardless of price adjustments.

Is the number '1' indicative of elastic or inelastic demand?

A value of 1 is a unique case known as unitary elasticity. In this scenario, the percentage change in quantity is exactly equal to the percentage change in price. This means that revenue remains constant despite changes, and neither elastic nor inelastic classifications apply.

Can you name five inelastic goods?

Certainly. Examples of inelastic goods are water, electricity, prescription medications, bread, and salt. These are essential goods that people continue to purchase regardless of price fluctuations, often because there are few or no substitutes.

Could you provide an example of inelastic demand?

The demand for insulin serves as a stark example of inelastic demand. People who are insulin-dependent will generally buy it regardless of its cost. Even significant price increases are unlikely to deter consumption because the product is life-sustaining, and there are no substitutes.

By understanding the mechanics of elastic and inelastic demand, businesses can tailor their pricing strategies more effectively. And if you're looking to get into the nitty-gritty of demand elasticity for your specific products, Priceva’s team of experts can provide valuable insights.

How do you determine if it is elastic or inelastic?

To determine if demand is elastic or inelastic, calculate the price elasticity of demand using the formula:

Price Elasticity of Demand (PED) = (% Change in Quantity Demanded) / (% Change in Price).


If the absolute value of PED is greater than 1, demand is elastic, meaning quantity demanded changes significantly with price changes. If less than 1, demand is inelastic, meaning quantity demanded changes little relative to price.

Is inelastic vs elastic less than 1?

Yes, when the price elasticity of demand is less than 1, it is considered inelastic. This means that a percentage change in price results in a smaller percentage change in quantity demanded. Elastic demand occurs when the value is greater than 1, indicating that quantity demanded is highly responsive to price changes.

Is 0.5 elastic or inelastic?

A price elasticity of 0.5 indicates inelastic demand. This means a 1% change in price will result in only a 0.5% change in quantity demanded. Products or services with a price elasticity of 0.5 tend to have essential or less substitutable characteristics.

What does a price elasticity of 2 mean?

A price elasticity of demand equal to 2 means demand is elastic. Specifically, a 1% change in price will lead to a 2% change in quantity demanded. This suggests the product or service is highly responsive to price changes, often seen with luxury goods or items with many substitutes.

What is the price elasticity explained simply?

Price elasticity measures how sensitive the quantity demanded or supplied of a product is to a change in price. For example, if the price of a good increases by 10% and the quantity demanded decreases by 15%, the demand is elastic. The formula provides a numerical value to describe this sensitivity.

Is 1.5 price elasticity of demand?

Yes, a price elasticity of demand of 1.5 indicates elastic demand. This means a 1% price change will result in a 1.5% change in quantity demanded, reflecting a relatively high responsiveness to price changes. Such goods often have close substitutes or are considered non-essential.

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