The equilibrium value of a levered firm facing growth opportunities is shown to involve the valuation of a lottery over (cooperative) games rather than a lottery over specific monetary outcomes. In the absence of assumptions about negotiating risk, the value of the firm's claims is seen to be ambiguous even with zero transactions costs. This ambiguity is compounded if the core of the game is empty. This paper rationalizes specific financial instruments and institutions as means for attenuating negotiation costs and core existence problems. Furthermore, the valuation of these instruments requires determining the certainty-equivalent of a lottery over games.