Analysing the Relationship Between Risk and Trust

Among the various human factors impinging upon making a decision in an uncertain environment, risk and trust are surely crucial ones. Several models for trust have been proposed in the literature but few explicitly take risk into account. This paper analyses the relationship between the two concepts by first looking at how a decision is made based on the risk information. We then draw a model based on a decision surface, and finally derive from it a trust model, called the decision trust, in order to explicitly include risk into the trusting decision