SOCIAL EMULATION, THE EVOLUTION OF GENDER NORMS, AND INTERGENERATIONAL TRANSFERS: THREE ESSAYS ON THE ECONOMICS OF SOCIAL INTERACTIONS

Adaptive trade-offs between foraging and social behavior intuitively explain many aspects of individual decision-making. Given the intimate connection between social behavior and feeding/foraging at the behavioral level, we propose that social behaviors are linked to foraging on a mechanistic level, and that modifications of feeding circuits are crucial in the evolution of complex social behavi...

One of the most interesting topics in social network science are social groups, i.e. their extraction, dynamics and evolution. One year ago the method for group evolution discovery (GED) was introduced. The GED method during extraction process takes into account both the group members quality and quantity. The quality is reflected by user importance measure. In this paper the influence of diffe...

This assumes the conclusion in order to prove the conclusion. This is a standard social science error: assume what you want to get and get a nice exponential equation. Then to believe that the nice equal describes what we are looking at. But these assumptions already contain the conclusions. It is not surprising that you get the results that you have assumed. We should take the attitude “I don’...

Substantial evidence suggests that physical attractiveness plays an important role in shaping overt mating preferences, judgments, and choices. Relatively few studies, however, have investigated the hypothesis that perceivers are attuned to signs of attractiveness at early, lower-order stages of social perception. In the current research, a visual cueing task was used to assess biases in attent...

We study the evolution of an educational system founded on a hierarchical di®erentiation between vocational and general education, with vocational playing an inferior role in the society. The dynamics are best summarized by the ratio of the fraction of the population in vocational to that in general education, which we interpret as a measure of the degree of strati ̄cation of the society. We sho...

The class of problems that can be categorized under language evolution and change is very heterogeneous and involves many different timescales and spatial/social scales. In order to better understand the underlying evolutionary processes and the link between language evolution and language change, we introduce a five-system hierarchy based on social structures of the population and apply it to ...

Social groups are often composed of individuals who differ in many respects. Theoretical studies on the evolution of helping and harming behaviors have largely focused upon genetic differences between individuals. However, nongenetic variation between group members is widespread in natural populations, and may mediate differences in individuals' social behavior. Here, we develop a framework to ...

1. Introduction Let P(x,y) denote the number of integers specified in the title. A number of estimates and asymptotic formulae for this function have been given (cf. [1] and the literature mentioned there). Recently DE BRUIJN ([2]) proved an asymptotic formula for log f(x,y) which holds uniformly for 2 < y < x. Part of the proof consisted of showing that P(x y) > C 71(y) + u\ where u = [(log x)...