This pattern is neither irrational nor a failure of nerve. It is the predictable output of loss aversion, the endowment effect, and the status quo bias operating simultaneously on a person who now has substantially more to lose than they did when they were most willing to risk losing things.

The reference point problem: success escalates the cost of failure

Kahneman and Tversky’s (1979) prospect theory establishes the core mechanism. Losses are weighted approximately twice as heavily as equivalent gains, and the reference point from which losses are calculated is the current position. As the entrepreneur accumulates resources — revenue, brand, team, market position, personal reputation — the reference point rises. What counts as a loss and how painful it feels are both functions of the current reference, not of an absolute standard.

A startup that fails costs less in absolute terms than an established business that fails. But the established business’s larger reference point means that equivalent percentage losses — the 30% revenue decline, the team attrition, the customer churn — are experienced as substantially larger losses in prospect theory terms than the same events would have been from the startup’s lower reference point. The rational case for risk-taking improves as resources accumulate; the psychological experience of potential loss intensifies at the same rate.

This is the comfort trap’s core dynamic: the probability-adjusted cost of a given risk is lower when the entrepreneur has more resources to absorb it, but the felt cost of the loss that risk might produce is higher. The rational calculation and the psychological experience move in opposite directions as success accumulates, and the psychological experience wins.

The endowment effect and the overvaluation of what has been built

Kahneman, Knetsch and Thaler’s (1990) endowment effect research established that owned objects are systematically overvalued relative to non-owned equivalents — because the endowment installs the loss aversion asymmetry at the boundary between owned and not-owned. Applied to the established entrepreneur’s organisational assets, the endowment effect predicts systematic overvaluation of the current business model, the existing team composition, the established customer relationships, and the current strategic position.

These overvalued endowments make risk-taking psychologically expensive in a specific way: risk-taking typically requires treating the current position as potentially less valuable than an alternative that does not yet exist. The endowment effect makes this comparison systematically unfair — the owned current position is evaluated through the loss frame, while the non-owned alternative is evaluated through the gain frame. The 2:1 asymmetry ensures that the current position wins the comparison in most cases, regardless of the objective merits of the alternative.

This is why the successful entrepreneur who rationally knows that the current business model is vulnerable — who can articulate the disruption risk clearly — still does not take the risk-taking action that would address the vulnerability. The intellectual understanding of the risk does not overcome the endowment effect’s systematic overvaluation of the position that risk-taking would require treating as replaceable.

The availability asymmetry: success makes failure less imaginable

Tversky and Kahneman’s (1973) availability heuristic predicts the third mechanism. Cognitive availability — the ease with which specific scenarios come to mind — is a primary determinant of subjective probability estimates. The entrepreneur who has experienced sustained success has a vivid, frequently recalled recent history of success scenarios. The failure scenarios that would provide the calibrating information for accurate risk assessment have not been recently experienced and are cognitively less available.

The reduced cognitive availability of failure produces a systematic underestimation of downside probability — exactly the cognitive state that should increase willingness to take risk, because the downside feels less likely. But the loss aversion mechanism overcompensates: even at reduced estimated probability, the elevated reference point and endowment effect make the felt cost of that smaller-probability downside substantial enough to produce risk aversion. The comfort trap has multiple reinforcing mechanisms operating simultaneously.

What the status quo bias adds

Samuelson and Zeckhauser’s (1988) status quo bias establishes that departing from the current state is evaluated against a loss frame regardless of the objective merits of the alternative. For the established entrepreneur, the current business model, team structure, and strategic position are the status quo. Every risk-taking decision that would change any of these is evaluated as a departure from the reference point — a loss relative to the current position rather than a neutral reallocation of resources toward the best available use.

The Kodak case is the most thoroughly documented corporate expression of the comfort trap. The company had the resources, the technology access, and the market intelligence to transition from film to digital photography. The film business was the endowment — overvalued through the endowment effect, protected by status quo bias, and generating the elevated reference point from which digital investment looked like a loss rather than a gain. The rational capacity to make the transition was present; the comfort trap mechanisms prevented it.

Books worth reading on this

Antifragile by Nassim Nicholas Taleb is the most intellectually rigorous available account of why optionality-preserving risk-taking at scale — specifically the strategy of making many small bets that preserve the option to scale successes — is fundamentally different from the concentrated risk-taking that the startup phase requires, and why the comfort trap’s risk reduction is not a rational response to accumulated resources but a systematic forfeit of the upside that those resources make most affordable. For the entrepreneur who wants the most challenging available intellectual framework for why their current risk aversion is costing them more than risk-taking would, Taleb provides the most rigorous available counter-position.

If the dynamics described here are significantly affecting your wellbeing, speaking with a psychologist is the right next step. UK: Samaritans (116 123, free, 24/7). Mind (0300 123 3393). BACP: bacp.co.uk/search/Therapists. Crisis Text Line — text HOME to 741741 (US, UK, Canada, Ireland). International: internationaltherapistdirectory.com.

This article is for educational and informational purposes only. Sources: Kahneman, D. & Tversky, A. (1979), Prospect Theory: An Analysis of Decision under Risk, Econometrica, 47(2), 263–291. Kahneman, D., Knetsch, J.L. & Thaler, R.H. (1990), Experimental Tests of the Endowment Effect and the Coase Theorem, Journal of Political Economy, 98(6), 1325–1348. Tversky, A. & Kahneman, D. (1973), Availability: A Heuristic for Judging Frequency and Probability, Cognitive Psychology, 5(2), 207–232. Samuelson, W. & Zeckhauser, R. (1988), Status Quo Bias in Decision Making, Journal of Risk and Uncertainty, 1(1), 7–59. Staw, B.M. (1976), Knee-Deep in the Big Muddy, Organizational Behavior and Human Performance, 16(1), 27–44. Kahneman, D. (2011), Thinking, Fast and Slow, Farrar, Straus and Giroux. Taleb, N.N. (2012), Antifragile, Random House. Christensen, C.M. (1997), The Innovator’s Dilemma, Harvard Business School Press.