The matching percentiles method, used by the Indices of Social Development, was first deployed by Lambsdorff et al. (1999) to construct the Corruptions Perceptions Index. In the matching percentiles process, values are matched across indicators based on country rankings. The ranks of successive indicators included in the index are used to assign equivalent values to countries based on their position on each additional measure. Variables are iteratively added to produce the index.
Erasmus
University
Rotterdam
Indices of
Social Development