Established model

Transaction cost economics

Oliver E. Williamson · 1975

Whether to do something yourself or have someone else do it turns on the cost of the arrangement, not the price of the work.

Its place in the frameworkBusiness CorePartners

What it does

Searching, negotiating, specifying, monitoring and enforcing all cost something, and they rise sharply when what is being exchanged is hard to specify or requires investment useful to only one buyer. That is the real argument for keeping something in-house: not that it is cheaper to make, but that the contract would be impossible to write.

Reach for it when
At every make-or-buy decision, and when a partnership keeps needing renegotiation.
Where it stops
The costs it turns on are largely unmeasurable in advance. It explains arrangements convincingly after the fact and predicts them poorly.

Oliver E. Williamson, Markets and Hierarchies, Free Press, 1975; The Economic Institutions of Capitalism, Free Press, 1985.

Why it sits at Partners

The organisations the business depends on to do things it does not do itself. Partnership is a capability decision before it is a commercial one.

A model is only useful when you reach for it at the right moment. This one answers a question that arises here — so it is filed here, and nowhere else. These are the working areas it serves:

All of Partners

What it touches elsewhere

Nothing in a business is decided on its own. A conclusion reached with this model at Partners lands in these other cores, whether or not anyone follows it there.

Filed at the same place

These answer questions that arise at Partners too. Where they disagree with this one, the disagreement is the useful part.

Elsewhere in Business Core

These are other people’s models, named here so you can go to the source and use them properly. The Omnigoal is not affiliated with their authors and is not endorsed by them; nothing of theirs is reproduced here — no canvas, no diagram, no wording. Each is described in our own words, with the originator credited, because the framework is a place to put thinking, not a replacement for the people who did it. Model names and trademarks belong to their respective owners and are used here only to refer to the work itself.

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