This paper proposes a new evaluation method for a social service system in order to support participants to create new knowledge and value. The main proposal is a rating scale method that can evaluate the current level (as-is) and the future desire (to-be) of participants, and with which the...

We consider a model that provides insight into the well-known Folk theorem in economics that when the discount factor beta is sufficiently close to 1, expropriation will never occur. Although this Folk theorem is true in our model, our perspective is different. The discount factor beta often is...