concstats review
Free, focused R package for market concentration and diversity calculations.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
concstats is an open-source R package for calculating market-structure, concentration, diversity, and inequality measures from market-share data. It is aimed at social-science researchers and practitioners conducting competition or market analysis. Inputs are numeric vectors and data frames, with helper functions that convert numeric values into individual market shares. The package is a fit for solo researchers and small or mid-market teams already working in R.
Its main strength is the breadth of measures within this narrow domain. One-step procedures cover firm counts, equivalent numbers, Top 3 and Top 5 shares, HHI, dual HHI, Dominance, Stenbacka, entropy, Gini, and Palma ratio calculations. Grouped and individual procedures support different market-analysis workflows, while data-frame-based ranking helps identify leading firms. This concentration of specialized calculations can reduce the need to implement each formula separately, but it does not position concstats as a general statistical analysis environment.
The package is free and open source, with desktop deployment on Windows and macOS and scripting support through R. Setup centers on preparing numeric vectors or data frames and using the package's documented functions, so familiarity with R is important. Documentation is the listed support channel. Choose concstats when market concentration, structure, inequality, or diversity metrics are the primary requirement; choose a broader statistical product when you need wider modeling capabilities or analysis beyond these measures.
concstats pros and cons
- Where it wins
- One-step calculation of concentration and diversity measures
- Covers HHI, Gini, entropy, Palma, dominance, and Stenbacka indices
- Ranks data frames and analyzes top-firm shares
- Where it doesn't
- Focused on market structure, concentration, inequality, and diversity
- Requires R numeric vectors or data frames
- Desktop package with documentation as the support channel
concstats fact sheet, pricing and score →
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