Abstract
This paper examines the use of agent based models in law. Jurisprudence has 4 characteristics, namely, retrospective nature, particularity orientation, emphasis on language manipulation, and exclusivism, which constitute the barrier for the social sciences, including agent based models, to enter the field of law. The development of law & economics, however, has paved the way to overcome the barrier. A few scholars are beginning to use, e.g., genetic algorism, evolutionary game theory, and signaling theory, in the analyses of law. On the other hand, the traditional jurisprudence itself became a signal, so that the new equilibrium in law might be a “separating equilibrium.”