GDP-normalised pricing · World Bank 2025 · 195 countries · Clinical Informatics Research Unit, University of Southampton
| Country | Continent | ISO | GDP/cap 2015 | GDP/cap 2025 | Pop 2015 (k) | Pop 2025 (k) | Factor 2015 | Factor Nominal | Factor PPP | Cost 2015 | Cost 2025 | Change £ | Change % |
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This tool calculates GDP-normalised pricing for EDGE, the award-winning clinical research management system developed by the Clinical Informatics Research Unit (CIRU) at the University of Southampton.
The pricing model normalises subscription costs relative to England's GDP per capita, ensuring organisations in wealthier countries pay proportionally more, and those in lower-income economies pay proportionally less — making EDGE accessible globally while reflecting local economic reality.
Contact: edge@soton.ac.uk · edgeclinical.com
| Normalising factor | Country GDP/cap ÷ England GDP/cap |
| Per-population cost | Population × £/head rate × norm. factor |
| Hospital tier cost | England tier price × norm. factor |
| Rate range (UK) | £0.030 – £0.060 per head, default £0.04375 |
| Pricing methodology | Nominal (WB 2025) / PPP (IMF 2025) / 50:50 Blended — toggle in calculator |
| UK PPP baseline (IMF 2025) | $65,525 international dollars per capita |
| 2015 baseline | World Bank GDP · England $37,729/cap · FX 1.25 |
| 2025 update | World Bank 2025 · England $57,602/cap · FX 1.27 |
| Small | £4,000/yr (England baseline) |
| Medium | £6,000/yr (England baseline) |
| Large | £12,000/yr (England baseline) |
| Extra large | £18,000/yr (England baseline) |
| Adjustment | Each tier × country normalising factor |