This paper characterizes the optimal contract when a principal has unverifiable subjective information that is correlated with an agent's private information. We find that the principal's subjective information alleviates the initial information asymmetry only if the correlation is sufficiently...

Optimal contracts between a buyer and a seller who trade multiple goods under asymmetric information are considered. The seller makes sequences of unobservable investments, and then realizes the value of the goods. The investment level and value of goods are private information for the seller...