Optimism bias relates to the perception of personal invulnerability, representing the underestimation of the likelihood of experiencing negative events It represents a defensive distortion that can undermine preventive actions.  Optimism bias can therefore be considered a form of indirect denial of risk. It is a concept that is frequently cited in research on risk and is an individual factor influencing Risk Perception.  
- Human Resilience
- Illusion of Control
- Risk Perception
- Risk Tolerance
- Subjective Risk
- Risk Mitigation
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- McKenna, F. P. (1993). It Won’t Happen to Me: Unrealistic Optimism or Illusion of Control. British Journal of Psychology, 84, pp 39–50.