As databases grow more prevalent and comprehensive, database administrators seek to limit disclosure of confidential information while still providing access to data. Practical databases accommodate users with heterogeneous needs for access. Each class of data user is accorded access to only...

A mediator aids disputants in resolving their differences. A theoretical framework for mediator mechanisms extends the subjective expected utility perspective and permits formal examination of mediator attitudes toward the equity and efficiency of agreements. Two forms of impartiality in...