Business Intelligence

Assessing Market Dominance: A Comment And An Extension

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Executive Summary

The authors have proposed a new statistic to assess market dominance. In this paper they expand their discussion of certain mathematical properties in their analysis and link their methodology to some previous approaches. The purpose of the present comment is firstly, to show the interconnection of these approaches and, secondly, to elaborate on this paper by checking the validity of the main findings and to expand on them. Generally speaking, the fast-track formula seems to rest on solid grounds. But the use of supplementary variables, whose estimation is admittedly more demanding, would impact on the study of dominance in a more useful manner.

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