An individual who has to choose one item from an opportunity set or menu may lack complete information about the final consequences attached to her choice. This problem has been modeled by Bossert (2000) who introduces an axiomatic approach to the ranking of menus according to their...

In this note we consider the problem whether contingent commodity allocations can be used when the states are not directly contractible. In such a setting a contingent commodity allocation takes the form of a social choice function, and the question is whether this function is implementable (in...

The notion of 'Controlling', as it is commonly used in German-speaking countries, may be regarded as an equivalent term for management accounting. At the same time, there have been considerable efforts to establish Controlling as a discipline on its own, rather than to regard it simply as the...