JSM 2004 - Toronto

Abstract #301210

This is the preliminary program for the 2004 Joint Statistical Meetings in Toronto, Canada. Currently included in this program is the "technical" program, schedule of invited, topic contributed, regular contributed and poster sessions; Continuing Education courses (August 7-10, 2004); and Committee and Business Meetings. This on-line program will be updated frequently to reflect the most current revisions.

To View the Program:
You may choose to view all activities of the program or just parts of it at any one time. All activities are arranged by date and time.

The views expressed here are those of the individual authors
and not necessarily those of the ASA or its board, officers, or staff.

Back to main JSM 2004 Program page
Activity Number: 406
Type: Contributed
Date/Time: Thursday, August 12, 2004 : 8:30 AM to 10:20 AM
Sponsor: Business and Economics Statistics Section
Abstract - #301210
Title: A Modified Coefficient of Variation for Partially Grouped Data
Author(s): Keith Ord*+ and Harvey Iglarsh
Companies: Georgetown University and Georgetown University
Address: McDonough School of Business, Washington, DC, 20057,
Keywords: coefficient of variation ; income distributions ; inequality measures ; variable group width
Abstract:

Observations from a bivariate distribution (X, Y) are grouped according to their X-values. The coefficient of variation (CV) of Y within each subgroup is often used to compare the variability in Y across those subgroups. Existing methods restrict usage to subgroups of equal width. We develop an extension of the CV that allows comparison of subgroups with unequal ranges. We use this measure to examine horizontal equity (the proposition that taxpayers with equal ability to pay [X] should have the same tax liability [Y]) in different income tax systems using grouped data from public IRS data files.

  • The address information is for the authors that have a + after their name.
  • Authors who are presenting talks have a * after their name.

Back to the full JSM 2004 program

JSM 2004 For information, contact jsm@amstat.org or phone (888) 231-3473. If you have questions about the Continuing Education program, please contact the Education Department.
Revised March 2004