A strong concentration and accumulation of information in cities have traditionally shaped the interactions between urban and rural systems. A part of this information was used to drain, at low cost, flows of energy, materials and people from the rural to the urban side, thus establishing a pattern of exploitation and dependence between these two subsystems. What was essentially a unidirectional, vertical, and hierarchical flow of information, resulted in a large concentration of capital, machines, educational potential, job opportunities, services, and most decision-making processes in cities.