As the performance of long-term projects is not observable in the short run politicians may pander to public opinion. To solve this problem, we propose a triple mechanism involving political information markets, reelection threshold contracts, and democratic elections. An information market is used to predict the long-term performance of a policy, while threshold contracts stipulate a price level on the political information market that a politician must reach to have the right to stand for reelection. Reelection thresholds are offered by politicians during campaigns. We show that, on balance, the triple mechanism increases social welfare.
We examine the interaction between vote-share contracts and learning-by-doing. Candidates for a political office are allowed to offer vote-share thresholds. The elected politician has to achieve at least this threshold value in his reelection result to remain in office for a second term. We assume there are learningby-doing effects for incumbents and show that competition leads to vote-share contracts implementing the socially optimal threshold, which is above one-half. Vote-share contracts improve the average ability level of a reelected politician and increase effort in the first term of an incumbent. On the other hand, vote-share contracts reduce the probability that learning-by-doing takes place. However, the overall effect of vote-share contracts is welfare-enhancing, even under the assumption of learning-by-doing.
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