How Regret Can Help Leaders Avoid Sunk-Cost Decisions

In a recent LinkedIn post, Daniel Pink discusses research on how reflecting with regret on a past escalation of commitment may help people avoid repeating that mistake. This article covers Pink’s post and the study he cites; it is journalistic reporting, not an article written by Pink.

“We increase funding in a hopeless project because we’ve spent so much already.”

When past investment clouds a decision

Pink describes a familiar organizational trap: continuing to put resources into a struggling project because of what has already been spent. That history can weigh on choices about what to do next, even when the project’s prospects are poor. His post points readers toward research by Gillian Ku, now of London Business School, on whether reflecting on earlier decisions can change later behavior.

“Ku, G. (2008). Learning to de-escalate: The effects of regret in escalation of commitment. Organizational Behavior and Human Decision Processes, 105(2), 221-232.”

Regret as a prompt to reconsider

According to Daniel Pink, Ku found that asking people to think about a previous escalation of commitment—and to regret it—reduced their likelihood of making the same error again. The finding suggests that looking back at a costly choice may do more than reinforce a lesson in hindsight: in the study Pink cites, regret was associated with a lower chance of repeating the pattern.

Pink’s post does not describe the study’s methods or establish that regret will prevent escalation in every workplace. Its point is narrower: reflection on a past instance of doubling down may help people recognize the pull of prior investment when facing a later decision.

Why the source matters

Pink identifies the research and its publication details, linking the observation to Ku’s 2008 paper rather than presenting it as his own original finding. He also says the topic came from his conversation with Mel Robbins on The Mel Robbins Podcast. That context frames the LinkedIn post as a brief discussion of research encountered in a wider conversation.

“From my conversation with @melrobbins on The Mel Robbins Podcast.”

A practical question for decision-makers

As Daniel Pink notes, the tendency to increase funding in a project because of money already spent can leave organizations tied to earlier choices. The research he highlights raises a useful question for leaders reviewing a troubled initiative: can an honest look at a previous escalation help decision-makers judge the current situation more clearly?

Pink’s post does not prescribe a specific management process. It draws attention to a possible role for regret in learning from past decisions, while pointing readers to Ku’s study for the underlying research.