期刊
HEALTH ECONOMICS
卷 14, 期 4, 页码 429-432出版社
JOHN WILEY & SONS LTD
DOI: 10.1002/hec.953
关键词
inequality; concentration index; immunization
When the health sector variable whose inequality is being investigated is binary, the minimum and maximum possible values of the concentration index are equal to mu-1 and 1-mu, respectively, where mu is the mean of the variable in question. Thus as the mean increases, the range of the possible values of the concentration index shrinks, tending to zero as the mean tends to one and the concentration index tends to zero. Examples are presented on levels of and inequalities in immunization across 41 developing countries, and on changes in coverage and inequalities in selected countries. Copyright (c) 2004 John Wiley W Sons, Ltd.
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