Strategy begins with interdependence
Some decisions can be assessed in isolation. Others depend on what someone else decides. A competitor responds to a new offer, a supplier adjusts its terms, or a customer waits for a promotion. Game theory gives us a language for thinking about these interdependent choices.
A “game” in this context is a model, not entertainment. It identifies the participants, the actions available to them, the information they have and the outcomes they value. Making those elements explicit can reveal assumptions that an ordinary planning conversation leaves hidden.
Map the players and their incentives
Start with a specific decision. List the participants and the choices each can realistically make. Then consider what a good outcome means to each of them. Revenue may matter, but so can reputation, time, reliability and exposure to risk.
The same action can have different meanings for different participants. A supplier may prefer a predictable contract over a larger but uncertain order. A customer may pay more for a service that removes administrative work. Understanding those preferences can uncover room for a mutually useful agreement.
Look beyond the first response
Imagine two businesses deciding whether to discount. A lower price may attract customers initially, but a competitor can respond with another reduction. The eventual outcome may be smaller margins for both. The useful question is not simply whether the first discount works, but what sequence of responses it creates.
A Nash equilibrium describes a situation in which no participant benefits from changing their strategy alone, given the others’ strategies. It is a model of stability, not a promise of the best possible outcome. Real decisions also involve incomplete information, changing preferences and human behavior that simplified models cannot fully capture.
Use the model to ask better questions
Consider whether decisions happen simultaneously or in sequence. Ask which actions are visible, which commitments are credible and whether participants expect to interact again. Repeated relationships can change the value of trust and cooperation.
Sketch a small table or decision tree instead of trying to capture every possible scenario. Compare a few plausible responses and identify which assumptions matter most. Game theory is most useful as a discipline for examining incentives—not as a machine for predicting exactly what another business will do.
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Adapted for an international audience by EON Editorial. Read the original article on EON Brazil. Read our editorial policy.
