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CONCINDC: Stata module to calculate concentration index with both individual and grouped data

Author

Listed:
  • Zhuo (Adam) Chen

    (Centers for Disease Control and Prevention
    University of Chicago)

Programming Language

Stata

Abstract

concindc computes the concentration index (CI) for micro data with a categorical welfare variable or grouped data. See Kakwani, Wagstaff and van Doorslaer (1997). Note that although it was originally designed for microdata with a categorical welfare variable, it can handle grouped data and microdata with actual (not categorical) welfare variable. They could be treated as a special case of microdata with categorical welfare measure: there is only one observation for each category. For grouped data, since the program can handle frequency weight, the group sizes can essentially be treated as frequency weights. The program also can use standard error of group means of the health outcome if supplied. If not, it will be estimated as the standard deviation of health outcomes.

Suggested Citation

  • Zhuo (Adam) Chen, 2007. "CONCINDC: Stata module to calculate concentration index with both individual and grouped data," Statistical Software Components S456802, Boston College Department of Economics, revised 30 Jul 2008.
    • Handle: RePEc:boc:bocode:s456802
    Note: This module should be installed from within Stata by typing "ssc install concindc". The module is made available under terms of the GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). Windows users should not attempt to download these files with a web browser.
    as

    Download full text from publisher

    File URL: http://fmwww.bc.edu/repec/bocode/c/concindc.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/c/concindc.hlp
    File Function: help file
    Download Restriction: no
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