PEST and PESTEL Analysis
PEST(EL) analysis scans the external forces you don't control, political, economic, social, technological, and optionally environmental and legal, so a strategy is built with eyes open to what's coming from outside the business.
Letters sit around the strategy at the centre, one for each external lens trained on it.
Reach for this when…
- You're about to commit capital to a market and haven't looked past your own industry.
- A regulatory or technology shift blindsided a competitor and you want to check your own exposure.
- The board wants 'context' before backing a five-year plan.
How to run it
- List the lenses: Political, Economic, Social, Technological, and where relevant Environmental, Legal.
- For each, note the specific forces bearing on your market, not generic trends.
- Separate what's already moving from what's merely possible.
- Rank by likely impact and how soon it bites.
- Feed the top few into your actual strategy choices, not just a slide.
A worked example
Situation. Pieter van der Merwe runs Suidwind Composites, a wind-turbine blade component maker outside Cape Town, South Africa, planning a new factory line.
Applied. Running a PESTEL scan, he found two forces that mattered more than the rest: a pending change to South Africa's REIPPPP renewable-energy procurement subsidies, and fast-tightening recycling rules for composite blade waste.
Result. He redesigned the line to use recyclable resin before breaking ground, ahead of rules that would otherwise have forced a costly retrofit.
The catch
PESTEL produces a long list of factors and no ranking on its own - without discipline it becomes pages of things that are true but not decision-relevant. It also dates quickly; a scan done once and filed away is just a historical document.
If every factor on your list scores 'high impact', you haven't actually ranked anything.
Origin: Francis Aguilar (PEST origin); later extended to PESTEL