We clarify the notions scientific process and social process with structuralist means. Three questions are formulated, and answered in the structuralistic, set-theoretic framework. What is a scientific process, and a process in science? What can be meant by a non-social process? In which sense a non-social process can be a part of a scientific process in social science? We are specifically interested in social processes. Our answers use the notion of the generalized subset relation applied to set-theoretical structures, and the (...) set of structuralistically reconstructed empirical theories. (shrink)

Reconstruimos la teoría central de las redes bayesianas n-dimensionales de forma clara y completa en el marco estructuralista. Nuestra formulación también incluye los n espacios de probabilidad unidimensionales y un espacio de probabilidad n-dimensional. Explicamos los sistemas previstos y la afirmación empírica de la teoría de las redes bayesianas n-dimensionales. En nuestra formulación, se destaca el concepto de dimensión, y discutimos si los eventos o las oraciones (enunciados, proposiciones) podrían usarse como bloques de construcción básicos.

Simulation studies in the context of Robert Axelrod’s research on iterative prisoner’s dilemma games focus nearly exclusively on the two-player- version of the game. In contrast, this article reports results of a simulation with an iterated N-prisoners’ dilemma where group size N varies between 2 and 30. The simulation investigates the relative performance of conditional cooperative strategies with increasing group size. Results show that some ‘nice’ strategies like ‘tit-for-tat’ are relatively successful and robust even in larger groups and non-nice environments. (...) However, this does not solve the cooperation problem. On the contrary, the relative success of some ‘nice’ conditional cooperative strategies is paralleled by a rapid decline of cooperation in large groups. (shrink)

Theory Reduction in the Social Sciences. The example of balance theories. A central topic both in philosophy of science as well as in the empirical sciences is the reconstruction of the relations between theories. In the past comparisons of theories by means of traditional linguistic methods have proved to be extremely difficult and complicated. In this article the reconstruction of intertheoretical relations based on model-theoretical terms is propagated, as formulated within the structuralist view of theories. The efficiency of a model (...) theoretical based comparison of theories is demonstrated by two theory elements from the social science research program of balance theories: The basic element by Heider and the transitivity theory by Holland and Leinhardt. First of all both theory elements are introduced informally and reconstructed in the structuralist format. On the basis of these reconstructions can be shown, that the Heider theory can be formally reduced to the Holland-Leinhardt theory and that the theory younger in history means an improvement. However, an integration of all balance theoretical elements into a theory net is not possible. (shrink)