On correcting the concentration index for binary variables
This article discusses measurement of socioeconomic inequalities in the prevalence of a health condition, in response to the recent exchange between Guido Erreygers and Adam Wagstaff, in which they discuss the merits of their own corrections to the frequently used concentration index. We first reconcile their debate and discuss the value judgments implicit in their indices. Next, we provide a formal definition of the previously undefined value judgment in Wagstaff's correction. Finally, we show empirically that the choice of index matters, as illustrated by comparisons between countries using data from the European Survey of Health, Ageing and Retirement.
If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Jusot, Florence & Kunst, Anton E. & Leinsalu, Mall & Menvielle, Gwenn & Schaap, Maartje M. & Roskam, Albert-Jan R. & Stirbu, Irina & Mackenbach, Johan P., 2008. "Socioeconomic Inequalities in Health in 22 European Countries," Economics Papers from University Paris Dauphine 123456789/10510, Paris Dauphine University.
- Kakwani, Nanak & Wagstaff, Adam & van Doorslaer, Eddy, 1997. "Socioeconomic inequalities in health: Measurement, computation, and statistical inference," Journal of Econometrics, Elsevier, vol. 77(1), pages 87-103, March.
- Clarke, Philip M. & Gerdtham, Ulf-G. & Johannesson, Magnus & Bingefors, Kerstin & Smith, Len, 2002. "On the measurement of relative and absolute income-related health inequality," Social Science & Medicine, Elsevier, vol. 55(11), pages 1923-1928, December.
- ERREYGERS, Guido, 2006.
"Correcting the Concentration Index,"
2006027, University of Antwerp, Faculty of Applied Economics.
- Adam Wagstaff, 2011. "The concentration index of a binary outcome revisited," Health Economics, John Wiley & Sons, Ltd., vol. 20(10), pages 1155-1160, October.
- Cristina Hernández Quevedo & Andrew M Jones & Ángel López Nicolás & Nigel Rice, 2005.
"Socioeconomic inequalities in health: a comparative longitudinal analysis using the European Community Household Panel,"
Health, Econometrics and Data Group (HEDG) Working Papers
05/12, HEDG, c/o Department of Economics, University of York.
- Hernández-Quevedo, Cristina & Jones, Andrew M. & López-Nicolás, Angel & Rice, Nigel, 2006. "Socioeconomic inequalities in health: A comparative longitudinal analysis using the European Community Household Panel," Social Science & Medicine, Elsevier, vol. 63(5), pages 1246-1261, September.
- Adam Wagstaff, 2005. "The bounds of the concentration index when the variable of interest is binary, with an application to immunization inequality," Health Economics, John Wiley & Sons, Ltd., vol. 14(4), pages 429-432.
- Udaya S Mishra & William Joe, 2010. "Socioeconomic Inequalities in Childhood Undernutrition in India An Application of the Corrected Concentration Index," Economics Bulletin, AccessEcon, vol. 30(1), pages 847-854.
- Erreygers, Guido, 2009. "Correcting the Concentration Index: A reply to Wagstaff," Journal of Health Economics, Elsevier, vol. 28(2), pages 521-524, March.
- Wagstaff, Adam, 2009. "Correcting the concentration index: A comment," Journal of Health Economics, Elsevier, vol. 28(2), pages 516-520, March.
- Lasso de la Vega, Casilda & Aristondo, Oihana, 2012.
"Proposing indicators to measure achievement and shortfall inequality consistently,"
Journal of Health Economics,
Elsevier, vol. 31(4), pages 578-583.
- Casilda Lasso de la Vega & Oihana Aristondo, 2010. "Proposing indicators to measure achievement and shortfall inequality consistently," Brooks World Poverty Institute Working Paper Series 12010, BWPI, The University of Manchester.
- Paul Allanson & Dennis Petrie, 2013. "On The Choice Of Health Inequality Measure For The Longitudinal Analysis Of Income‐Related Health Inequalities," Health Economics, John Wiley & Sons, Ltd., vol. 22(3), pages 353-365, 03.
- Guido Erreygers & Tom Van Ourti, 2010.
"Measuring Socioeconomic Inequality in Health, Health Care and Health Financing by Means of Rank-Dependent Indices: A Recipe for Good Practice,"
Tinbergen Institute Discussion Papers
10-076/3, Tinbergen Institute.
- Erreygers, Guido & Van Ourti, Tom, 2011. "Measuring socioeconomic inequality in health, health care and health financing by means of rank-dependent indices: A recipe for good practice," Journal of Health Economics, Elsevier, vol. 30(4), pages 685-694, July.
- Guido Erreygers & Tom Van Ourti, 2011. "Putting the cart before the horse. A comment on Wagstaff on inequality measurement in the presence of binary variables," Health Economics, John Wiley & Sons, Ltd., vol. 20(10), pages 1161-1165, October.
When requesting a correction, please mention this item's handle: RePEc:eee:jhecon:v:32:y:2013:i:3:p:659-670. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Zhang, Lei)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.