Also note the important potential fact that contrary incentives might not be very effective in altering motivations grounded in moral dispositions. We do not have a good account of the psychological or other force of such dispositions, but they seem to be extremely strong in some cases. We should qualify this claim, however, because psychological research suggests that we tend to overestimate dispositions as a cause of behavior (Jones 1979). On the contrary, we may tend to underestimate the role of interests, as is suggested by the account of supervenience in chapter 3.

XREF: Relates to fundamental attribution error research (Ross / Jones 1979) and the disposition- versus-situation debate in social psychology.

Russell Hardin, Trust and Trustworthiness, loc. 216