Before revision: We introduce a new solution concept  for selecting optimal strategies in strategic form games which we call periodic strategies and the solution concept periodicity. As we will explicitly demonstrate, the periodicity solution concept has implications for non-trivial realistic games, which renders this solution concept very valuable.
After revision: We introduce a new solution concept for selecting optimal strategies in strategic form games . This periodicity solution concept has implications for non-trivial realistic games, which renders this solution concept very valuable.