Confidence is not evidence about odds
How sure a person feels at the start is an accurate reading of that person and nothing else. Everybody standing in the same line was let in by the same feeling, so the group's rate does not move when one
Cooper Woo Dunkelberg
Meaning
Empirical measurement of optimism contrasts subjective expectations of business survival against historical industry statistics. In the landmark study by Cooper Woo Dunkelberg, entrepreneurs revealed extreme overoptimism regarding their personal prospects. The data indicates that while founders recognize the high failure rates of businesses in general, they believe their own ventures are almost certain to succeed.
This cognitive dissonance drives entry into volatile markets, shielding the individual from the realistic odds of failure.
Subjective Probability
Founders routinely estimate their own chances of success as vastly superior to those of their peers. The survey evidence gathered by Cooper Woo Dunkelberg shows that a large majority of founders perceive their likelihood of success as ninety percent or higher. This expectation stands in stark contrast to the low baseline survival rate of new ventures.
Confidence distorts risk.
Optimism Discrepancy
A curious division exists between how founders view the general economy and how they view their personal projects. The work of Cooper Woo Dunkelberg shows that while individuals acknowledge that most businesses will fail, they maintain that their own business has zero chance of doing so. This separation allows them to hold realistic views about industry averages while remaining completely optimistic about their own path.
The divergence explains why market entry remains high despite widespread awareness of structural barriers. Personal conviction overrides statistics.
Risk Neglect
Unrealistic expectations insulate the founder from the psychological burden of impending venture failure. The findings of Cooper Woo Dunkelberg suggest that this cognitive buffer is necessary to prompt action. Without optimism, entry would cease.