Every founder I have known has done this at some point. They kept pouring money, time, and hope into something that was quietly failing. A product nobody wanted. A partnership that had soured. A market that would not open. From the outside, the answer looked obvious: stop. From the inside, stopping felt impossible, even unthinkable. That gap between what others see and what we cannot bear has a name in behavioral science. Understanding it is one of the most freeing things a new founder can do. The name is loss aversion. It is the reason we hold on to what is not working long after we should let go.
The argument of this piece is simple, and I hope it frees you. The thing holding you to a failing course is not weakness or stubbornness. It is a predictable trait in how people weigh losses. And because it is predictable, you can name it. Naming it is how you loosen its grip. Once you see the bias at work, you can decide on the merits instead of on the fear.
What loss aversion actually is
Loss aversion comes from one of the great findings in decision science. Kahneman and Tversky (1979), in their work on prospect theory, showed two things. People judge outcomes against a reference point. And losses loom larger than equal gains. In plain terms, losing something hurts more than gaining the same thing feels good. The pain of giving up what you have beats the pleasure of an equal new gain. The gap is wide.
That gap sounds abstract until you map it onto a founder's life. Say you have put two years and most of your savings into a venture. Walking away means facing a real loss. You make it final, admit it, and feel its full weight. Carrying on keeps the loss in your head. It stays deferred and still maybe winnable. So the sure pain of stopping feels heavier than the slow, growing pain of going on. And you go on. Not because the evidence backs it, but because the mind is built to dodge the sting of a real loss. Let me be fair about the science here. Prospect theory names a strong, well-tested trend in how people decide. It is not an iron law that rules every single choice. But as a picture of why letting go feels so hard, it is remarkably accurate.
How it traps founders in sunk costs
Loss aversion has a close cousin that does the real damage in business. It is the sunk cost trap. A sunk cost is what you have already spent and cannot get back. It is the money, the years, the reputation already put in. In theory, sunk costs should not shape what you do next. No future choice can bring them back. Only one question should matter. Is more spending from here worth it on its own terms?
But loss aversion makes sunk costs feel like the biggest thing in the room. Quitting would make us face the loss of all we poured in. So we keep spending to avoid that. We tell ourselves we are guarding the first investment. In fact we are doing the opposite. Each extra month, each fresh shot of cash into a venture that is not working, deepens the very loss we want to avoid. The bias wears the mask of commitment. And it turns a small, survivable failure into a much larger one. Here is the cruelest part. The more you have already lost, the harder it pulls you to keep going, because the loss to face is now even bigger. This is how good founders ride a failing venture all the way down. Not through stupidity, but through a feeling that works exactly as evolution built it to.
Naming it is how you let go
Here is the move that changes things. It is quieter than the bold advice you usually hear about cutting your losses. You do not beat loss aversion by force of will. You do not beat it by pretending you feel nothing. You beat it by naming it, out loud, in the moment you decide.
Say this to yourself, plainly: "I am loath to stop because of loss aversion, not because the case for going on is strong." Something shifts. You split the feeling from the facts. The reluctance does not vanish. But it stops posing as judgment. Now you can ask the one question that should drive the choice. It looks forward. Knowing what I know today, and setting aside all I have spent, would I choose to invest in this from scratch right now? If the honest answer is no, then going on is not loyalty to your vision. It is loss aversion making the choice for you.
A few practices make this naming easier and more reliable. Set your exit conditions in advance. Do it while you are calm and free of a growing loss. Then the choice to stop is already made before the feeling can seize it. Ask a trusted outside voice what they would do. The bias runs far quieter in someone who did not make the first investment. And reframe stopping. It is not losing what you spent, which is gone either way. It is freeing what remains: the cash, the time, and the energy you can still aim at something that works. Seen clearly, letting go is not the loss. It is getting back all you have not yet spent.
Key takeaways
- Loss aversion is the trend for losses to loom larger than equal gains. Kahneman and Tversky (1979) established it in their work on prospect theory.
- It is why founders keep funding what is not working. Stopping makes the loss real, while going on keeps it in your head. So we carry on against the evidence.
- The sunk cost trap is loss aversion in action. The more you have spent, the harder the pull to keep spending. That deepens the very loss you fear.
- Naming the bias in the moment splits the feeling from the facts. Then you can ask the forward question: would I invest in this from scratch today?
- Prospect theory names a strong, well-tested trend, not a law that rules every choice. Treat it as a pattern to catch in yourself.
Frequently asked questions
References
Kahneman, D., & Tversky, A. (1979). Prospect theory: An analysis of decision under risk. Econometrica, 47(2), 263-291.
---
This article is for informational and educational purposes only and does not constitute financial, legal, tax, medical, or professional advice. Individual results vary.
This article reflects the personal experience and views of Mherie Vic Palomo-Prevendido and is for general information and education only - not financial, legal, tax, medical, or psychological advice. Your results will vary.
