The Influence of free Trade on the pPF PPF2 PPF1 Fiqure 4.4 0 R Ice McGraw-HillIrwoin @2003 The McGraw-Hill Companies, Inc, All Rights reservedMcGraw-Hill/Irwin © 2003 The McGraw-Hill Companies, Inc., All Rights Reserved. 4-4 The Influence of Free Trade on the PPF Figure 4.4 Cocoa Rice G’ PPF2 0 PPF1