However, even if all of the individual members of the Committee have well-defined and carefully thought-out individual reaction functions – that is, each member knows what his or her policy preference is for any given state of the world – it does not follow that the Committee as a whole has an equally well-defined reaction function.
The reason for this divergence is that when one says that the Committee has a reaction function for how it will behave if contingency X arises, such a statement implies that we have fully litigated this contingency in advance.