Every number produced by our simulator is an impact ceiling estimate, not a price forecast. Understanding the difference is crucial for using the tool correctly.
An impact ceiling answers the question: if all upstream cost changes passed through to consumer prices with zero absorption by middlemen, retailers, or government subsidies, how much could the price of this product rise? It is deliberately an upper bound, designed to show the maximum potential exposure rather than the most likely outcome.
Think of it like a flood risk assessment. A flood map might show that a 100-year storm could put water three meters deep in your street. That doesn’t mean your street will flood this year. But it tells you the exposure level and helps you make informed decisions. Our impact ceiling works the same way for price risk.
The ceiling is useful because it reveals relative vulnerability. In the Strait of Hormuz 2026 scenario, Egypt shows a 32.4% basket ceiling while Brazil shows 5.8%. Even if the actual outcomes are 60% of these ceilings (19.4% and 3.5% respectively), the ranking of countries by vulnerability is preserved. The IMF’s October 2023 World Economic Outlook confirmed that global inflation peaked at 8.7% in 2022, with realized inflation typically running 55–75% of the maximum estimated exposure from commodity shocks.
There are several common misreadings to avoid. First, the ceiling is not a prediction. We are not saying that bread prices in Egypt will rise 38.6%. We are saying that the combination of Brent crude +54%, shipping +150%, urea +49%, and EGP depreciation creates a ceiling of 38.6% if everything passes through fully. Second, the ceiling does not account for government intervention. Egypt’s bread subsidy program has historically kept baladi bread prices nearly flat despite enormous upstream cost increases (IMF Article IV, Egypt, 2024). Third, the ceiling reflects a specific scenario with specific input values, not a continuously updating forecast.
To properly interpret the numbers, consider three layers. The first is the headline number — the maximum exposure. The second is the factor breakdown, which reveals which upstream drivers matter most. A bread impact driven primarily by wheat prices will behave differently from one driven primarily by currency depreciation. The third is the country context — import dependency ratios, FX regime type, and subsidy programs all affect how much of the ceiling materializes.
The most actionable use is comparative. Instead of fixating on whether fuel in Egypt will rise exactly 48.2%, compare Egypt’s 48.2% ceiling to Germany’s 4.6% and ask: what structural differences explain the 10x gap? The answer — import dependency, currency stability, energy diversification, and fiscal capacity — reveals the fundamental drivers of vulnerability.
Sources: IMF World Economic Outlook (October 2023). IMF Article IV Consultation, Egypt (2024). EIA Short-Term Energy Outlook (March 2026). howwarimpactsyou.com model methodology.