Oct 9, 2026 · 46 min · 12 segments
PEST, PESTEL / PESTLE, STEP, STEEP, STEEPLE, etc., are slight variations of frameworks used for macroenvironmental analysis. Irrespective of the specific taxonomy used, scanning the external…
Where do we even start with categorizing all this chaos?
Well, the logical starting point is taxonomy.
Before any organization can manage chaos, it has to have a way to categorize it.
Right.
And in the mid-20th century, managers were really beginning to drown in this post-war information explosion.
But they lacked any sort of systematic filter.
Exactly.
Francis Aguilar recognized this paralysis in his 1967 book, Scanning the Business Environment.
And he proposed a model called ETPS.
E.T.P.S.
So that is economic, technical, political and social factors.
Correct.
His core thesis was quite simple, but revolutionary.
He stated that any external force capable of degrading or enhancing a firm's competitive position would originate in one of those four domains.
I mean, it sounds super elementary to us now, but just formalizing that structure was a massive paradigm shift back then.
It was.
And over the decades, Arnold Brown updated it to the Strategic Trend Evaluation Process, or STEP.
And then, as globalization just compounded all the variables, the framework evolved into what is taught in strategy classes everywhere today.
Steep.
Steepe.
So social, technological, economic, ecological and political or legal factors.
Sometimes you hear it called pestle, right?
Yes.
Pestle is effectively the same conceptual tool.
Where do we even start with categorizing all this chaos?
Well, the logical starting point is taxonomy.
Before any organization can manage chaos, it has to have a way to categorize it.
Right.
And in the mid-20th century, managers were really beginning to drown in this post-war information explosion.
But they lacked any sort of systematic filter.
Exactly.
Francis Aguilar recognized this paralysis in his 1967 book, Scanning the Business Environment.
And he proposed a model called ETPS.
E.T.P.S.
So that is economic, technical, political and social factors.
Correct.
His core thesis was quite simple, but revolutionary.
He stated that any external force capable of degrading or enhancing a firm's competitive position would originate in one of those four domains.
I mean, it sounds super elementary to us now, but just formalizing that structure was a massive paradigm shift back then.
It was.
And over the decades, Arnold Brown updated it to the Strategic Trend Evaluation Process, or STEP.
And then, as globalization just compounded all the variables, the framework evolved into what is taught in strategy classes everywhere today.
Steep.
Steepe.
So social, technological, economic, ecological and political or legal factors.
Sometimes you hear it called pestle, right?
Yes.
Pestle is effectively the same conceptual tool.
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