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α: calibrated so average coauthorship-adjusted count equals average raw count
We study the contractual design problem of a seller that observes an ex-post signal correlated with the buyer’s valuation and can make the allocation, but not payments, contingent on it. We show that, to maximize her profit, the seller should offer a menu of contracts whereby the good is transferred to the buyer only if the signal is sufficiently low. The welfare implications of these contracts are also discussed.