The Benini statistic is one of a number of measures of association in mobility tables which attempt to make a gross distinction between mobility brought about by changes in the occupational structure and mobility due to other factors (further examples include the index of association, disparity ratios, and odds ratios). These statistics all lack the advantage of the newer techniques of loglinear modelling; namely, that the latter permit one to test alternative models of mobility, in order to examine their respective criteria of fit.
"Benini coefficient." A Dictionary of Sociology. . Encyclopedia.com. (August 16, 2018). http://www.encyclopedia.com/social-sciences/dictionaries-thesauruses-pictures-and-press-releases/benini-coefficient
"Benini coefficient." A Dictionary of Sociology. . Retrieved August 16, 2018 from Encyclopedia.com: http://www.encyclopedia.com/social-sciences/dictionaries-thesauruses-pictures-and-press-releases/benini-coefficient