弹性理论演示幻灯片.pptx

Week 9;Learning Objective;Outline ;Elasticity: A Measure of Responsiveness;Elasticity: A Measure of Responsiveness;1. The Price of Elasticity of Demand;The Price of Elasticity of Demand;The Price of Elasticity of Demand;Computing Percentage Changes and Elasticities;Computing Percentage Changes and Elasticities;Price Elasticity and the Demand Curve;Price Elasticity and the Demand Curve;Price Elasticity and the Demand Curve;Elasticity and the Availability of Substitutes;Elasticity and the Availability of Substitutes;Elasticity and the Availability of Substitutes;Other Determinants of the Price Elasticity of Demand;Determinants of the Price Elasticity of Demand;Exercise ;Exercise ;Exercise ;Exercise ;Exercise ;Exercise ;Exercise ;Exercise ;Exercise ;Exercise ;Exercise ;Exercise ;12. The Demand Curve that is perfectly elastic is on graph: A) A. B) B. C) C. D) D. ;Exercise ;Exercise ;Exercise ;2. Using Price Elasticity;Predicting Changes in Quantity;Predicting Changes in Quantity;Example 1;Example 1 ;Example 2 ;Example 2;Price Elasticity and Total Revenue;Price Elasticity and Total Revenue;Price Elasticity and Total Revenue;Price Elasticity and Total Revenue;Price Elasticity and Total Revenue;Price Elasticity and Total Revenue;Price Elasticity and Total Revenue;Using Elasticity to Predict the Revenue Effects of Price Changes ;Exercise ;Exercise ;Exercise ;Exercise ;Exercise ;Exercise ;Exercise ;3. Elasticity and Total Revenue for a Linear Demand Curve;需求价格弹性的计算;点弹性的计算;弧弹性的计算;Price Elasticity along a Linear Demand Curve;Demand is elastic along the upper half of a linear demand curve, which means that a decrease in price will increase the quantity sold by a larger percentage amount. As a result, total revenue will increase, as shown by the positively sloped total-revenue curve between points a and b. ;In contrast, demand is inelastic along the lower half of a linear demand curve, which means that a decrease in price will increase the quantity sold by a smaller percentage a