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This collection features scholarly work by Andrew I. Duff, professor and chair for the department of anthropology at Washington State University. Duff's research focuses on the increasing complexity of social and ritual institutions, problems of integration and emergent inequality as scale increases within the context of middle range societies. He works with the archaeological identification of communities and the social implications of major settlement, structural, and demographic changes associated with Puebloan (Anasazi) communities between the eleventh and fifteenth centuries in the American Southwest. He has researched different temporal components of these transitions at different points in his career. His dissertation research was a study of changing social identities in the Western Pueblo area of northeastern Arizona and northwestern New Mexico during the A.D. 1300s, a period of extensive social upheaval, migration, ritual elaboration, and regional interaction. His current, long-term research project explores similar issues during the earlier florescence of the regional system centered on Chaco Canyon during the 11th and 12th centuries.

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