We analyze the topical question of how the compensation of elected politicians affects the set of citizens choosing to run. To this end, we develop a sparse and tractable citizen-candidate model of representative democracy with ability differences, informative campaigning and political parties. Our results suggest that primaries, campaign costs and rewards have previously overlooked interactions that should be studied in a unified framework. Surprisingly, increasing the reward may lower the average candidate quality when the campaigning costs are sufficiently high. Copyright Springer Science + Business Media, LLC 2007Politicians’ competence, Career concerns, Campaigning costs, Rewards for elected officials, Citizen-candidate models,
We develop an equilibrium search model of innovation with the possibility of multiple independent discovery. We distinguish innovations from ideas, and we view patents as probabilistic property rights that are constrained by the innovators' option to keep the innovation secret. We find that the patent system can simultaneously stimulate innovation, information disclosure and welfare. An optimal patent may provide more or less protection than secrecy, and in many cases, it provides less, suggesting that its main function is information spreading rather than rewarding the costs of the innovative activity.
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