190 02-11 Changes in Quantity Demanded Price A tax that raises the price of ice-cream B cones results in a $2.00 movement along the demand curve. 1.00 0 4 8 Quantity Economics ECONOMICS MANAGEMENT SCHOOL,TONGJI UNIVERSITY
Economics ECONOMICS & MANAGEMENT SCHOOL, TONGJI UNIVERSITY 02-11 0 D Price Quantity A tax that raises the price of ice-cream cones results in a movement along the demand curve. A B 8 1.00 $2.00 4 Changes in Quantity Demanded
0 Shifts in the Demand Curve ·Consumer income Prices of related goods ·Tastes ·Expectations ·Number of buyers Economics ECONOMICS MANAGEMENT SCHOOL,TONGJI UNIVERSITY
Economics ECONOMICS & MANAGEMENT SCHOOL, TONGJI UNIVERSITY Shifts in the Demand Curve • Consumer income • Prices of related goods • Tastes • Expectations • Number of buyers
1907 Shifts in the Demand Curve 。 Change in Demand -A shift in the demand curve,either to the left or right. -Caused by any change that alters the quantity demanded at every price. Economics ECONOMICS MANAGEMENT SCHOOL,TONGJI UNIVERSITY
Economics ECONOMICS & MANAGEMENT SCHOOL, TONGJI UNIVERSITY Shifts in the Demand Curve • Change in Demand – A shift in the demand curve, either to the left or right. – Caused by any change that alters the quantity demanded at every price
02-14 0 The Demand Curve Change in Demand D D ·Income Increases P2 -At PI produce 2 -At P2,produce O P1 Demand Curve shifts right More purchased at any price on D'than on D Qo Q1 Q2 Q Economics ECONOMICS MANAGEMENT SCHOOL,TONGJI UNIVERSITY
Economics ECONOMICS & MANAGEMENT SCHOOL, TONGJI UNIVERSITY 02-14 P D Q1 Q P2 Q0 P1 D’ Q2 Change in Demand Change in Demand The Demand Curve • Income Increases – At P1, produce Q2 – At P2, produce Q1 – Demand Curve shifts right – More purchased at any price on D’ than on D
1907 02-15 树 Shifts in the Demand Curve ·Consumer Income As income increases the demand for a normal good will increase. -As income increases the demand for an inferior good will decrease. Economics ECONOMICS MANAGEMENT SCHOOL,TONGJI UNIVERSITY
Economics ECONOMICS & MANAGEMENT SCHOOL, TONGJI UNIVERSITY 02-15 Shifts in the Demand Curve • Consumer Income – As income increases the demand for a normal good will increase. – As income increases the demand for an inferior good will decrease