Trust-worthiness requires the trusted party to care about one’s interests, not merely act predictably

Evidence

It is common in the vernacular to say I “trust” you to do such things as, for example, defend yourself if attacked by a dog, in which case your motivations are not at all like those of the encapsulatedinterest account of trust. You defend yourself, as most of us would, for your own direct interest. If trust reduces to such bald expectations of behavior, there is little point in using the loaded term “trust.” My “trust” would be useless in helping us explain your self-defense, which is not motivated by your concern with my interests (or any other commitments you might have to me specifically). Moreover, my trust—as my assessment of your encapsulation of my interests in your own interests—will commonly help explain relevant actions of mine, specifically my choosing to rely on you to do something on my behalf, whereas my “trust” that you would defend yourself when attacked by a dog would explain none of my behavior. — Russell Hardin, Trust and Trustworthiness, 102

Categorization

• DEFINE: Distinguishes encapsulated-interest trust from mere behavioral expectation — only the former explains the truster’s choices to rely.