price elasticity demand
Overview
This lesson explores Price Elasticity of Demand (PED), a crucial concept in microeconomics that measures the responsiveness of quantity demanded to a change in price. Understanding PED helps businesses make pricing decisions and governments formulate tax policies, as it indicates how much consumers will alter their purchasing habits when prices fluctuate.
Introduction to Price Elasticity of Demand (PED)
Price Elasticity of Demand (PED) is a fundamental concept in microeconomics that quantifies the sensitivity of quantity demanded to changes in price. It helps us understand consumer behaviour and predict how sales will react to price adjustments. The formula for PED is: **PED = (% Change in Quantit...
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Key Concepts
- Price Elasticity of Demand (PED): A measure of the responsiveness of quantity demanded to a change in the price of a good or service.
- Elastic Demand: Occurs when the percentage change in quantity demanded is greater than the percentage change in price (PED > 1).
- Inelastic Demand: Occurs when the percentage change in quantity demanded is less than the percentage change in price (PED < 1).
- Unitary Elastic Demand: Occurs when the percentage change in quantity demanded is exactly equal to the percentage change in price (PED = 1).
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Exam Tips
- →Always remember to use the absolute value of PED in your analysis unless specifically asked to show the negative sign. The interpretation of 'elastic' or 'inelastic' relies on the absolute value.
- →Practice calculating PED using the percentage change formula. Be careful with the 'old' vs. 'new' values for both price and quantity. Show your working clearly.
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