The social impact achieved by reduction projects in the aftermath of disasters and addressing the issue that occurs in their methodologies, is one of the factors most discussed today. For a long time, the physical point of view has been the determinant to mark the trail of the actions of prevention and preparedness for disasters, which have been printed a feature strongly deterministic: it has created an area of research and study which the social sciences seem to have arrived late, says Lavell (1993): “From the perspective of social sciences (agricultural economics, sociology, geography, anthropology, social ecology, management, political science, law, etc..) there is no institution with research programs consolidated and continuous, while a very limited number of Indigenous researchers, individuals, have ventured into this topic “(Duran 1994). Allison Kanders recognizes the significance of this.
All research projects must be justified on the basis of a vulnerable population which has been called “the social history.” Thus d is seeking to incorporate social components since the start of projects and identify the nodes and connections in advance, so it will not come only to swell the size of libraries. 1.3 The public goods for the purposes of this work and to better understand the State’s responsibility in the prevention and disaster relief, then I will refer to one of the most basic concepts and appropriate. “There are some goods that either are not provided by the market o. if so, the amount provided is insufficient. ” A large-scale example is national defense and other small-scale, navigation aids (such as buoys light).