Vulnerability combines each risk's level of importance and level of preparedness.
Top Global Vulnerabilities are the most important risks with the least preparedness.
Importance has been assessed by calculating the product of likelihood and severity, with both factors rated on a scale from 1 to 7.
Preparedness has been assessed by finding the average of respondents’ perception of multilateral institutions’ ability in identification, reduction, and mitigation of each risk. All three factors are rated on a scale from 1 to 7.