Economists usually think that rational voters have little incentives to acquire costly information. We present a … information if media technology is available because then they do not condition their informational decisions on being pivotal …-ride. Further, we show how the quality of information depends on the size of the electorate, the prior knowledge of voters and on …

information. These are used to give a formal de…finition of Ambiguity and, consequently, to distinguish between ambiguous and …The concept of Ambiguity designates those situations where the information available to the decision maker is …? The present paper fi…lls these gaps. Speci…fically, it identifi…es those information structures that are incompatible with …

The Model studies information sharing and the stability of cooperation in cost Research Joint Ventures (RJVs). …