JAN-ÅKE ALVARSSON is a professor of anthropology at the University of
Uppsala. He has published books, monographs, and articles that focus pri-
marily on Mataco groups in the Chaco regions of Bolivia and Argentina.

JOSÉ BRAUNSTEIN is an anthropologist working with CONICET, the na-
tional research institute. For the past fifteen years he has been living and
working in the Argentine Chaco among the Mataco-Wichí and Pilagá. He
has published monographs and articles on indigenous Chaco peoples, with
attention to ethnic classifications.

SILVIA MARÍA HIRSCH, an anthropologist living in Princeton, New Jer-
sey, teaches at the College of New Jersey and Princeton University. Her re-
search and writing involve Guaraní groups in western Bolivia and northern
Argentina, with stress on indigenous political organizations.

STEPHEN W. KIDD is an anthropologist completing his dissertation at the
University of St. Andrews, Scotland. He is Lecturer in Social Anthropology
at the University of Edinburgh. His research work involves the Enxet
(Lengua) peoples of Paraguay, political economy, and national indigenous
policies.

MARCELA MENDOZA is an anthropologist living and teaching in Mem-
phis, Tennessee. Her research and writing interests are the Western Toba
groups in northwest Argentina, with attention to subsistence and family life
in rural and urban settings.

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