This paper develops a framework of a theory for the emergence of social reality that turns out by relating three different models or agent architectures, respectively: a model of the emergence of social hierarchies, an architecture of a normative system and an architecture of the delegation of social control. This reflects a complex feedback loop of the emergence of an autonomous sphere of soci...

Animals have evolved complex foraging strategies to obtain a nutritionally balanced diet and associated fitness benefits. Recent research combining state-space models of nutritional geometry with agent-based models (ABMs), show how nutrient targeted foraging behavior can also influence animal social interactions, ultimately affecting collective dynamics and group structures. Here we demonstrate...

Many speed-up techniques developed for accelerating the computation of shortest paths in road networks, like reach or contraction hierarchies, are based on the property that some streets are ’more important’ than others, e.g. on long routes the usage of an interstate is almost inevitable. In grids there is no obvious hierarchy among the edges, especially if the costs are uniform. Nevertheless w...

This paper gives two definability results in the local theory of the ω-enumeration degrees. First we prove that the local structure of the enumeration degrees is first order definable as a substructure of the ω-enumeration degrees. Our second result is the definability of the the classes Hn and Ln of the highn and lown ω-enumeration degrees. This allows us to deduce that the first order theory ...

Markets, hierarchies and networks are widely understood to be the three primary forms of social organization. In this article, we study the choice between these forms in a general, agentbased model (ABM) of cooperation. The organizational ecology is the product, an emergent property, of the set of choices made by agents contingent on their individual attributes and beliefs about the population ...

! Abstract Dominance hierarchies exist in numerous social species, and rank in such hierarchies can dramatically influence the quality of an individual’s life. Rank can dramatically influence also the health of an individual, particularly with respect to stress-related disease. This chapter reviews first the nature of stress, the stressresponse and stress-related disease, as well as the varieti...