ECSENOMICS Shifts in Supply or Demand Change S Equilibrium Price and Quantity T22 Figure 3-8 (a)Supply Shift (b) Demand Shift Q Quantity McGraw-Hilllrwin CopyrightC 2001 The McGraw-Hill Companies, Inc. All rights reserved.McGraw-Hill/Irwin Copyright © 2001 The McGraw-Hill Companies, Inc. All rights reserved. Shifts in Supply or Demand Change Equilibrium Price and Quantity T-22 Figure 3-8