Multifactorial approaches may be more productive. Recent papers such as “The Legacy of Disadvantage: Multigenerational Neighborhood Effects on Cognitive Ability” and “Neighborhood Effects in Temporal Perspective: The Impact of Long-Term Exposure to Concentrated Disadvantage on High School Graduation” are part of a continuing research agenda looking more profoundly into the causes of the intergenerational transmission of disadvantage.

综合多种措施可能会更加有效。为弱势群体境况代代相传的现象，寻找更加深层的原因，这是一个持续进行的研究议程。最近的一些论文，比如《弱势处境的传承：居住多代的社区对认知能力的影响》 (The Legacy of Disadvantage: Multigenerational Neighborhood Effects on Cognitive Ability)和《从时间角度看居民区效应：长期处于弱势境地对高中毕业状况的影响》 (Neighborhood Effects in Temporal Perspective: The Impact of Long-Term Exposure to Concentrated Disadvantage on High School Graduation)，都属于这个进程的一部分。

The criticism of the M.T.O. study (which is now complete) points to new avenues for exploration. Even though the interpretation of the results of the housing voucher program has become contentious and somewhat politicized, the debate itself has the potential to be constructive.

MTO这项研究（目前已经完成）遭受的批评，指出了可供探索的一些新途径。尽管对于租赁券计划结果的解释，变得富有争议，而且有点政治化，这个辩论本身却可能具有建设性。

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