The following is a model of psychological contracting with unmonitorable performance, implicit offers, and screening for non-performance by the announcement of the expectation of performance. It is motivated by the $250 billion prescription drug industry, which spends $19 billion per year on...

Trust is indispensable to fiduciary fields (e.g., credit rating), where experts exercise wide discretion on others behalf. Can the shame from scandal sort trustworthy people out of a fiduciary field? I tested for the possibility in a charitable contribution game where subjects could be...