Real-World Examples of Price Elasticity of Demand in Business

📚 Quick Study Guide

• 📈 Price elasticity of demand (PED) measures the responsiveness of quantity demanded to a change in price.
• 📐 PED is calculated as: $PED = \frac{\% \ Change \ in \ Quantity \ Demanded}{\% \ Change \ in \ Price}$
• Elastic demand (PED > 1): Quantity demanded changes significantly with price changes.
• Inelastic demand (PED < 1): Quantity demanded changes little with price changes.
• Unit elastic demand (PED = 1): Percentage change in quantity demanded equals the percentage change in price.
• Factors affecting PED: Availability of substitutes, necessity of the product, proportion of income spent on the product, and time horizon.

🧪 Practice Quiz

1. Which of the following products is MOST likely to have elastic demand?
   1. A) Insulin
   2. B) Gasoline
   3. C) Designer Handbags
   4. D) Electricity
2. A local coffee shop raises its price from $3 to $3.50. As a result, the quantity demanded decreases by 15%. What is the price elasticity of demand?
   1. A) 0.43 (Inelastic)
   2. B) 1.00 (Unit Elastic)
   3. C) 1.75 (Elastic)
   4. D) -0.15 (Perfectly Inelastic)
3. A company selling luxury watches finds that a price increase leads to a significant decrease in sales. This indicates:
   1. A) Inelastic demand
   2. B) Elastic demand
   3. C) Unit elastic demand
   4. D) Perfectly inelastic demand
4. Which of the following factors would make demand for a product MORE inelastic?
   1. A) Many close substitutes
   2. B) The product is a necessity
   3. C) The product is a luxury
   4. D) The product represents a large portion of a consumer's income
5. A concert venue notices that when they lower ticket prices by 10%, attendance increases by 20%. What type of demand do concert tickets have?
   1. A) Perfectly inelastic
   2. B) Inelastic
   3. C) Unit elastic
   4. D) Elastic
6. During a recession, demand for which of the following goods is MOST likely to decrease significantly?
   1. A) Staple foods
   2. B) Medical services
   3. C) Luxury cars
   4. D) Basic clothing
7. If the price elasticity of demand for a product is 0.8, and the company wants to increase revenue, should they increase or decrease the price?
   1. A) Increase the price
   2. B) Decrease the price
   3. C) Keep the price the same
   4. D) It depends on the cost of production