The collective value of all social networks (who people know) and the inclinations that arise from these networks to do things for each other (the norms of reciprocity) is called ____________ ??
Agriculture cannot absorb the population concentration of human activities and settlements around the downtown areas when the residential area shifts outward this is called____________?
According to Herbert Gans residents who remain in the city to take advantage of the unique cultural and intellectual benefits of the city are called_____________?