This note provides a response to Professor Eugene Rosa's viewpoint to our paper <italic>On Risk Defined as an Event Where the Outcome is Uncertain</italic> published in this journal in January 2009. We argue that his summary of our work does not reflect what we are saying in the original paper. We restate that...

In the social sciences, two prevailing definitions of risk are: (1) risk is a situation or event where something of human value (including humans themselves) is at stake and where the outcome is uncertain; (2) risk is an uncertain consequence of an event or an activity with respect to something...

Many industries and organizations are actively searching for approaches that can help them enhance the reliability of their operations and avoid mishaps. The concept of high reliability organizations (HROs) has been given considerable attention in this regard. HRO theorists have emphasized the...