We consider a model of information aggregation in which there are two possible states of the world and agents receive private signals from the set of probability measures over the binary state space - the unit interval. For a reasonably general set of signal densities, a unique symmetric...

We consider collective choice with agents possessing strictly monotone, strictly convex and continuous preferences over a compact and convex constraint set contained in [InlineMediaObject not available: see fulltext.]<Subscript> + </Subscript> <Superscript> k </Superscript> . If it is non-empty the core will lie on the efficient boundary of the...</superscript></subscript>