Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
A firm must decide what security to sell to raise external capital to finance a profitable investment opportunity. There is ex ante asymmetry of information regarding the probability distribution of cash flow generated by the investment. In this setting, we derive necessary and sufficient conditions for a security to be optimal (uniquely optimal, that is, for pooling at this security to be an (the unique) equilibrium outcome. Using these conditions we show that the debt contract is (uniquely) optimal if and only if cash flows are ordered by (strict conditional stochastic dominance. Finally, we derive an equivalence relationship between optimal security designs and designs that minimize mispricing. Article published by Oxford University Press on behalf of the Society for Financial Studies in its journal, The Review of Financial Studies.