RR-FiME-13-02 Adrien Nguyen Huu We attempt to formalize a randomization procedure undertaken in pre-emptive real option games without simultaneous investment. This allows to propose a unified treatment of both real option games with and without simultaneous investment. This is done by introducing a random arbitrator with different parametrization. We then extend the study to an unfair arbitrator. This leads to competitive advantages in various asymmetrical situations. Relying on the results of Read more [...]