in some circumstances, we trust others even without the optimistic expectation, instead hoping the mere recognition that the person is being trusted in itself will prompt the favorable action. This is known as therapeutic trust and gives both the trustee a reason to be trustworthy, and the trustor a reason to believe they are trustworthy. In these situations, the sense of betrayal upon violation of trust is commonly warranted. The definition of trust as a belief in something or a confident expectation about something eliminates the notion of risk, because it does not include whether the expectation or belief is favorable or unfavorable. For example, to have an expectation of a friend arriving to dinner late because she has habitually arrived late for the last fifteen years, is a confident expectation (whether or not we agree with her annoying late arrivals). The trust is not about what we wish for, but rather it is in the consistency of the data of our habits. As a result, there is no risk or sense of betrayal because the data now exists as collective knowledge. Faulkner contrasts such predictive trust with aforementioned affective trust, proposing predictive trust may only warrant disappointment as a consequence of an inaccurate prediction, not betrayal. Economics Trust in economics is treated as an explanation for a difference between actual human behavior and the one that can be explained by the individual desire to maximize one's utility. In economic terms, trust can provide an explanation of a difference between Nash equilibrium and the observed equilibrium. Such an approach can be applied to individuals as well as societies. Trust is important to economists for many reasons. Taking the "Market for Lemons" transaction popularized by George Akerlof as an example, if a buyer of a car doesn't trust the seller to not sell a lemon, the transaction won't be entered into. The buyer won't enter into the transaction in the absence of trust, even if the product is of great value to the buyer. Trust can act as an economic lubricant, reducing the cost of transactions between parties, enabling new forms of cooperation and generally furthering business activities; employment and prosperity. This observation created a significant interest in considering trust as a form of social capital and has led research into closer understanding of the process of creation and distribution of such capital. It has been claimed that a higher level