一、研究背景国际社会对动态贫困、慢性贫困的关注,促使了贫困家庭代际传递(Intergenerational Transmission of Poverty,简称ITP)的研究热潮。传统贫困研究多为静态模式,但不断变动的贫困家庭要求对贫困进行动态研究,即动态贫困(Poverty Dynamics)研究。在贫困动态性的理论预设之下,最基本的研究分类是长期性贫困(Chronic Poverty)和暂时性贫困(Transient Poverty)。世界银行对长期性贫困的定义是,某些人群长期处于贫困状态,且至少持续5年以上,虽经扶助也难以脱贫的状态;暂时性贫困则是指某些人群贫困状态持续不超过5年,经过 I. Background The international community’s concern about dynamic poverty and chronic poverty has prompted the research craze of Intergenerational Transmission of Poverty (ITP). Traditional research on poverty is mostly static, but changing families require dynamic research on poverty, Poverty Dynamics. Under the theoretical assumptions of poverty dynamics, the most basic research categories are Chronic Poverty and Transient Poverty. Long-term poverty is defined by the World Bank as long-term poverty for some people and persists for at least five years, although it is difficult to get out of poverty even though it is aided. Temporary poverty means that some people have been in poverty for no more than five years ,after