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The deeper the hole, the harder it feels to stop digging. Escalation of commitment is the tendency to keep investing time, money or reputation in a chosen course of action even after new evidence says it is failing.
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When a project, investment or relationship keeps absorbing resources despite worsening signals, decision-makers often keep going rather than admit the original choice was wrong. The chosen course of action gets harder to abandon the longer it runs.
Important: the warning sign at Y3 did not slow investment. It often speeds it up, because stopping now would mean admitting the first three years were a loss.
The model is most useful when a decision-maker has history, sunk investment or public standing riding on a course of action that is no longer working.
The method works by removing history and ego from the decision, then forcing a fresh comparison against today's evidence.
Split the original decision from today's decision. Money, time and reputation already spent cannot be recovered either way.
Ask what a new decision-maker, with no history and nothing to prove, would choose using only current evidence.
Name, in advance, the concrete evidence that would count as a stop signal, before emotions are running high.
Set a review date so the course of action must be re-justified on its current merits, not continued by default.
Open a use case to see what the model changes.
Separate "how much have we already spent" from "what would a fresh review of the current plan, timeline and team recommend." Budget overrun alone is not evidence to continue; it is only evidence of cost.
Each new funding round can be judged on today's unit economics and market signal, not on protecting the valuation implied by earlier rounds. A down round or a write-off is a data point, not a personal failure.
Public visibility raises the cost of reversing course, which is exactly when a pre-committed stop signal protects decision-makers from escalating purely to avoid a public admission.
Years of training or tenure are real, but they describe the past. A fresh-eyes test asks whether this path is still the best current option, not whether leaving would "waste" the years already spent.
Each missed deadline is itself a data point. Track whether the gap between planned and actual dates is shrinking or growing before deciding whether "almost there" is true or a pattern.
Time already spent at the table is a sunk cost, not a reason to accept worse terms than your walk-away alternative. Re-check your BATNA before the next counteroffer, not after.
This is an illustrative example designed to teach the method.
Expand for the original research and how it differs from the sunk cost fallacy.
Organizational researcher Barry M. Staw introduced the term in a 1976 study, "Knee-Deep in the Big Muddy: A Study of Escalating Commitment to a Chosen Course of Action," published in Organizational Behavior and Human Performance. Staw showed experimentally that decision-makers who were personally responsible for an initial, worsening decision tended to allocate more resources to it than decision-makers who inherited the same situation.
The sunk cost fallacy describes one specific mechanism: using unrecoverable past costs to justify further spending. Escalation of commitment is the broader organizational pattern that sunk cost reasoning feeds into, alongside self-justification, social and peer pressure, and the tendency to take more risk as a project nears what looks like a completion point. A decision can escalate even when sunk cost reasoning is not the main driver, for example when it is driven mainly by not wanting to admit a public mistake.
Researchers and historians commonly point to the Shoreham Nuclear Power Plant, where Long Island Lighting Company continued construction for years after cost and safety signals turned sharply negative, and the plant was never licensed for commercial operation. The Anglo-French Concorde program is another frequently cited case of continued government investment despite early signs the economics would not work, sometimes called the "Concorde fallacy" for that reason. In foreign policy, a 1965 memo from Under Secretary of State George Ball warned President Lyndon Johnson that a large U.S. troop commitment in Vietnam could become a hard-to-reverse escalation, illustrating the same dynamic outside a business setting.
Self-justification, social pressure and face-saving often matter as much as the dollars already spent. Fixing the budget process alone will not fix the pattern.
Normal perseverance through an expected setback is healthy. Escalation specifically means continuing against new evidence that contradicts the original plan.
Reviewers who share the same incentives and history as the original decision-maker can escalate together. Independent review matters more than individual willpower.
Disconfirming evidence usually arrives gradually, as several small warning signs. Each one is easy to dismiss alone; the pattern is what matters.
An oversight committee built from the same stakeholders can still escalate commitment together. Rotate in genuinely independent reviewers.
The fix is a pre-committed, evidence-based review, not abandoning every project at the first sign of difficulty. See "When Not to Use It."
the setback was already priced into the original plan's risk tolerance and timeline, and no new disconfirming evidence has appeared.
the field genuinely requires a long horizon before results can appear, such as early-stage drug development or basic research.
a binding legal, safety or ethical obligation requires completion regardless of how anyone currently feels about it.
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Stubbornness describes a personality trait. Escalation of commitment is a situational pattern that appears even in people who are not generally stubborn, once they are personally responsible for a decision that is now producing bad news. It is about the structure of the situation, not only the person in it.
No. Groups and whole organizations escalate commitment together, often more strongly than individuals, because group cohesion and shared history can suppress dissenting views. A board, a committee or an entire agency can collectively keep funding a failing course of action.
Reasonable reputation management weighs real future consequences of a decision. Face-saving in escalation of commitment specifically means protecting a past decision's appearance of correctness, even when that protection has no bearing on which future choice produces the best outcome.