Substantial policy changes, like market-oriented reforms by populist parties and steps towards peace by 'hawks,' are sometimes implemented by 'unlikely' parties. To account for such episodes, this paper develops a framework in which incumbent politicians have better information about the state...

Real price variability depreciates the information about future prices contained in current ones. Repeat-purchase customers have, then, less incentive to acquire price information. The fact that consumers are less well informed allows firms to increase their markups and permits inefficient...