Christopher Dougherty EC220 - Introduction to econometrics (chapter 5) Slideshow: the dummy variable trap Original citation: Dougherty, C. (2012) EC220.
17-1 McGraw-Hill/Irwin Copyright © 2013 by The McGraw-Hill Companies, Inc. All rights reserved. Business Statistics: Communicating with Numbers By Sanjiv.
THE DUMMY VARIABLE TRAP 1 Suppose that you have a regression model with Y depending on a set of ordinary variables X 2,..., X k and a qualitative variable.
