Before revision: This paper studies the connection between Dynkin games and optimal switching in continuous time and on a finite horizon. An auxiliary two-mode optimal switching problem is formulated which enables the derivation of the game's value under very mild assumptions. Under slightly stronger assumptions, the optimal switching formulation is used to prove the existence of a saddle point and a connection is made to the classical "Mokobodski's hypothesis".
After revision: This paper uses recent results on continuous-time finite-horizon optimal switching problems with negative switching costs to prove the existence of a saddle point and a connection is made to the classical "Mokobodski's hypothesis".