Macroeconomics
Export Diversification HHI Calculator
Calculate a four-category export concentration index from export shares.
Inputs and results stay in this browser. Currency symbols are illustrative; use any consistent currency.
Understand Export Diversification HHI
One idea, three depths
Choose how deeply to explain Export Diversification HHI
Export Diversification HHI: Calculate a four-category export concentration index from export shares.
Age 5Explain it to a 5-year-oldStart with a picture
Imagine using Export Diversification HHI to answer this question: calculate a four-category export concentration index from export shares? Enter Largest export category share, Second category share, Third category share, and 1 other input; the calculator shows Export concentration HHI. Try changing one number and watch what happens to Export concentration HHI. The answer tells you Export concentration HHI.
Age 15Explain it to a 15-year-oldConnect it to the formula
The residual category is treated as one group, so more detailed classifications produce a more informative index. The rule is Export HHI = sum of squared export-category shares. Its input values are Largest export category share (%), Second category share (%), Third category share (%), Fourth category share (%), and the main result is Export concentration HHI. Try changing one number and watch what happens to Export concentration HHI.
CollegeExplain it at college levelState the model precisely
This calculator evaluates a macroeconomics relationship while holding unmodelled conditions constant. The implemented relation is Export HHI = sum of squared export-category shares, evaluated from Largest export category share (%), Second category share (%), Third category share (%), Fourth category share (%) to produce Export concentration HHI. The residual category is treated as one group, so more detailed classifications produce a more informative index. The result depends on comparable definitions, units, populations and time periods. It estimates a relationship; it does not establish causation or replace current primary data.
The economic question
Calculate a four-category export concentration index from export shares.
Why this relationship is useful
The residual category is treated as one group, so more detailed classifications produce a more informative index.
Inputs that must be comparable
- Largest export category share measured in %.
- Second category share measured in %.
- Third category share measured in %.
- Fourth category share measured in %.
Use one market, firm, population and time period throughout; mixing definitions can make a correctly calculated number economically meaningless.
The model
Export HHI = sum of squared export-category shares
From inputs to output
The calculator combines Largest export category share, Second category share, Third category share, Fourth category share and reportsExport concentration HHI together with Equivalent number of export groups, Residual export-category share. Change one assumption at a time to identify what actually drives the estimate.
How to read Export concentration HHI
Read the sign, magnitude, unit and period together. The result quantifies the relationship in “calculate a four-category export concentration index from export shares”; it does not by itself prove that one input caused another.
Where interpretation can fail
Do not use the result when the input definitions, units or formula assumptions do not match the real situation. This is an educational model, not financial, investment, tax or policy advice; verify material decisions against primary data and professional guidance.
Supporting sourcesAcademic referencesPrimary standards, textbooks and complete citations
Standards, reading and academic references
Use the calculator as the worked interaction, then consult the primary standards and academic textbooks listed below. MW SysArc links to the original sources; the explanation on this page is original and does not reproduce them.
Principles of Economics 3e
Read the free OpenStax economics textbookCite this book
- APA 7
- Greenlaw, S. A., Shapiro, D., & MacDonald, D. (2022). Principles of economics 3e. OpenStax. https://openstax.org/books/principles-economics-3e/pages/1-introduction
- MLA 9
- Greenlaw, Steven A., et al. Principles of Economics 3e. OpenStax, 2022, https://openstax.org/books/principles-economics-3e/pages/1-introduction.
- Chicago author-date
- Greenlaw, Steven A., David Shapiro, and Daniel MacDonald. 2022. Principles of Economics 3e. Houston, TX: OpenStax. https://openstax.org/books/principles-economics-3e/pages/1-introduction.
OpenStax entries are free to read online. Follow the licence shown on each linked source before redistributing or adapting its content.
Reuse the page responsiblyCite this pageAPA, MLA, Chicago, Harvard, BibTeX and RIS
These formats cite this calculator page itself. They are separate from the academic references above, which support the mathematical method and terminology.
APA 7
MW SysArc. (2026, July 21). Export Diversification HHI Calculator. MW SysArc Tools. https://economics.mwsysarc.com/macro/export-diversification-hhi
MLA 9
MW SysArc. “Export Diversification HHI Calculator.” MW SysArc Tools, 21 July 2026, https://economics.mwsysarc.com/macro/export-diversification-hhi. Accessed 30 Aug. 2026.
Chicago 17
MW SysArc. “Export Diversification HHI Calculator.” MW SysArc Tools. Published July 21, 2026. Accessed August 30, 2026. https://economics.mwsysarc.com/macro/export-diversification-hhi.
Harvard
MW SysArc (2026) ‘Export Diversification HHI Calculator’, MW SysArc Tools. Published 21 July 2026. Available at: https://economics.mwsysarc.com/macro/export-diversification-hhi (Accessed: 30 August 2026).
BibTeX and RIS records
BibTeX
@misc{mwsysarc_export_diversification_hhi_2026,
author = {{MW SysArc}},
title = {Export Diversification HHI Calculator},
howpublished = {MW SysArc Tools},
year = {2026},
url = {https://economics.mwsysarc.com/macro/export-diversification-hhi},
note = {Published July 21, 2026; accessed August 30, 2026}
}RIS
TY - ELEC
AU - MW SysArc
TI - Export Diversification HHI Calculator
T2 - MW SysArc Tools
PY - 2026
DA - 2026-07-21
Y2 - 2026-08-30
UR - https://economics.mwsysarc.com/macro/export-diversification-hhi
N1 - Published July 21, 2026
ER -Clear answers
Frequently asked questions
What does the Export Diversification HHI do?
Calculate a four-category export concentration index from export shares.
How does the Export Diversification HHI work?
The calculator applies this formula: Export HHI = sum of squared export-category shares. The residual category is treated as one group, so more detailed classifications produce a more informative index.
What can I learn from the Export Diversification HHI?
It helps you explore the relationship described by this tool: Calculate a four-category export concentration index from export shares. Change one input at a time to observe how it affects the result.
Does MW SysArc receive or store what I enter?
No. The calculation runs locally in your browser. MW SysArc does not receive or store your calculation inputs.
How should I use the result?
Use the result as an estimate or educational aid. Check important financial, business or policy decisions with qualified sources and current data.
Last reviewed . Calculations tested .