ECSENOMICS Progressive, Proportional, and Regressive Taxes T-121 Figure 16-4 T/Y Progressive tax Proportional tax Regressive tax ncom 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. Progressive, Proportional, and Regressive Taxes T-121 Figure 16-4