Massey D S
Population Studies Center, University of Pennsylvania, Philadelphia 19104-6298, USA.
Demography. 1996 Nov;33(4):395-412; discussion 413-6.
Urbanization, rising income inequality, and increasing class segregation have produced a geographic concentration of affluence and poverty throughout the world, creating a radical change in the geographic basis of human society. As the density of poverty rises in the environment of the world's poor, so will their exposure to crime, disease, violence, and family disruption. Meanwhile the spatial concentration of affluence will enhance the benefits and privileges of the rich. In the twenty-first century the advantages and disadvantages of one's class position will be compounded and re-inforced through ecological mechanisms made possible by the geographic concentration of affluence and poverty, creating a deeply divided and increasingly violent social world.
城市化、收入不平等加剧以及阶层隔离的增加，已在全球造成了富裕与贫困在地理上的集中，给人类社会的地理基础带来了根本性变化。随着世界贫困人口所处环境中贫困密度的上升，他们遭受犯罪、疾病、暴力和家庭破裂的风险也会增加。与此同时，富裕的空间集中将提升富人的利益和特权。在21世纪，一个人阶级地位的优势和劣势将通过富裕与贫困地理集中所带来的生态机制而加剧并强化，从而造就一个深度分化且暴力不断升级的社会世界。
