Expressing and communicating uncertainty and bias in relation to Quantitative Risk Analysis

Recent discussions on foundations of risk analysis have identified a need to clearly distinguish between the concept of risk and ways to describe risk (Aven 2012a). A plethora of risk definitions and concepts is known to exist (Hampel 2006, Aven 2012b), e.g. based on probability (Kaplan 1997), expected values (Campbell 2005), events (Rosa 2010) or uncertainty (Aven and Renn 2009).