LexiconExpansion
Geographic Replication Index (GRI)
مؤشر التكرار الجغرافي
Definition
The Geographic Replication Index (GRI) is the measure of how faithfully new branches reproduce the economics of proven reference branches in new districts and cities. It is the median of new-branch margin ÷ reference-cohort margin at the same age, read at months 6 and 12. A GRI of 1.0 means branch 30 earns like branch 3.
In plain words
Does the success of your first branches repeat in new neighbourhoods and cities?
Also searched as
- GRI
- replication index
- replication score
- branch replication
- مؤشر التكرار الجغرافي
Formula
GRI = median (new-branch contribution margin ÷ reference-cohort margin at the same age), months 6 and 12
Canonical thresholds
| Threshold | Verdict |
|---|---|
| ≥ 0.9 | Replicate at pace |
| 0.75–0.9 | Fix what is not travelling before the next wave |
| < 0.75 | Stop openings in the city |
Example
Illustrative example · hypothetical figures
Month-6 ratios for five branches in City B: 0.95, 0.88, 0.72, 0.91, 0.84. The GRI is the median, 0.88: fix, then continue. The diagnosis starts at the 0.72 branch.
Where it is used
In the Doctrine and the Playbook
- Doctrine §2 · Definitions
- Doctrine §5 · Measuring replication
- Playbook §2 · Gate 5: Replication to a second city
- Doctrine §8 · Governance: the board dashboard · Board metric 10
In Beneath Marketing
Related terms
Should I open a new branch? Run the numbers
How to cite this definition
Alhajj, S. (2026). “Geographic Replication Index”. In The Revenue Engineering Lexicon, version 1.0. Riyadh. https://seiflden.com/lexicon/geographic-replication-index/