Publication: Journal of Economic Education
Volume: Volume 25, No. 4
Issue: Fall 1994
Pages: pp. 303-308
Author(s): Jerome Heavey (Lafayette College)
Address (Principal Author):Jerome Heavey, Department of Economics and Business, Lafayette College, Easton, PA 18042 (215) 250-5300
Internet Address (Principal Author): hj#2%lafayacs.bitnet@lafibm.lafayette.edu
Title: A Simple Geometry of Income Elasticities
Abstract: This note provides an explanation of how a few straight lines added to the familiar graphical analysis of the income and substitution effects of a price change will show not only whether each of the goods is inferior or normal, but also whether either of the goods is superior.