Keeping the other candidate guessing: Electoral competition when preferences are private information

We analyze a, model of two candidate competition in which candidate and voter preferences are private information. If candidates simultaneously commit to policy platforms the uncertainty about candidate preferences reinforces the incentive for platform divergence. After a candidate observes the other candidate’s stance but before she learns about voter preferences she may face regret about her choice. This ex post irrationality suggests that a 1 period model may not capture the relevant incentives. In a multi-period proposal game in which candidates first make non-binding public proposals and then they make binding public proposals (similar to Ledyard, 1989) we find that candidates are uninformative during the first stage, as they have a disincentive to reveal their preferences to the opposing candidate. This finding offers an explanation for candidate ambiguity or inconsistency early in an election which does not involve efforts to deceive voters. Candidates may be trying to keep their opponent guessing. With a strong pre-election commitment technology, candidates can only be deterred from this type of behavior if they anticipate that a sizeable number of voters (more than a majority) will vote contrary to their preferences over policy. Copyright Springer Science + Business Media, Inc. 2005