U.S.-Based Private Voluntary Organizations: Religious and Secular PVOs Engaged in International Relief & Development
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We have constructed a new and substantial data set from 1939 to 2004 on U.S.-based private voluntary organizations (PVOs) engaged in international relief and development. The universe comprises PVOs registered with the federal government (U.S. Agency for International Development since the early
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美国国家经济研究局创建时间：
2006-05-01
