If having firm-driven renegotiations of contracts for infrastructure services is a major concern, efficiency should not be the only consideration in selecting an operator, indeed, consumers may want to award the concession to a less efficient firm if that would reduce the probability of...

Standard & Poor's provides corporate governance ratings to firms who can, upon learning those, decide to reveal them or not to the market. This paper identifies the circumstances under which such a simple ownership contract over ratings can emerge as the optimal arrangement. Firms hiding their...