ABOUT THE AUTHORS Christopher Chase-Dunn is Professor of Sociology at Johns Hopkins University. He is the author of Transnational Corporations and Underdevelopment (with Volker Bornschier, Praeger, 1985) and Global Formation: Structures of the World-Economy (Basil Blackwell, 1989). He is currently working on the problem of the transformation of modes of production by comparing the modern global political economy to earlier, smaller world- systems. Gary M. Feinman is an Associate Professor of Anthropology at the University of Wisconsin-Madison. A Mesoamerican archaeologist, he has participated in field work in the Valleys of Oaxaca and Ejutla since 1977. He is co-author of three books and has written more than 30 articles on various topics, including craft specialization, demographic change, and regional analysis. Andre Gunder Frank is Professor of Development Economics and Social Sciences at the University of Amsterdam. He has taught in departments of anthropology, economics, history, and sociology at Universities in Europe, North and Latin America. His research has centered primarily on Third World and Latin American dependence (the "development of underdevelopment"), history of the world system, and the contemporary world economic crisis. His work also ranges over international political economy and relations, marxism, organization theory and management, peace research, socialism and social movements. His 800 plus publications in 24 languages include 600 versions of articles, chapters in over 100 readers/anthologies, and over 100 different editions of his 30 books, among them Capitalism and Underdevelopment in Latin America, World Accumulation 1492-1789, Crisis In the World Economy, and The European Challenge. Barry K. Gills did his postgraduate work at the London School of Economics and Oxford. He teaches in the Department of Politics at the University of Newcastle Upon Tyne. Together with Andre Gunder Frank, he is working on a "World System History" which places world accumulation at the center of the analysis and encompasses five thousand years of world system development. Other research interests are in the International Political Economy of East Asia, and the political economy of Korea in particular. He is a Fellow of the Transnational Institute, Amsterdam. Thomas D. Hall is the Lester M. Jones Professor of Sociology at DePauw University. He received his Ph.D. at the University of Washington in 1981. His book on the American Southwest, Social Change in the Southwest, 1350-1880 (Published by University Press of Kansas in its historical sociology series) has been widely acclaimed. He is currently working on the incorporation of ethnic minorities into the world-system in the nineteenth and twentieth centuries, and comparing those processes with processes in precapitalist world-systems. Linda M. Nicholas is an Honorary Fellow in the Department of Anthropology at the University of Wisconsin-Madison. She has worked as an archaeologist in Oaxaca since 1980. In her research she has taken a regional perspective to the analysis of indigenous systems of land use in both Mexico's Southern Highlands and the southwestern United States. Peter Peregrine received his Ph.D. in Anthropology from Purdue University in 1990, and is now Assistant Professor of Anthropology at Juniata College. His research is focused on the evolution of complex societies, with particular emphasis on the rise of Mississippian chiefdoms in the American midcontinent. In future research efforts Dr. Peregrine hopes to investigate the utility of world-systems theory in developing a unified theory of cultural evolution in eastern North America. Stephen K. Sanderson is Professor of Sociology at Indiana University of Pennsylvania. His main research interests are in the areas of social theory, sociocultural evolution, and comparative macrosociology. He is the author of Macrosociology:An Introduction to Human Societies (Harper & Row, 1988; 2nd edition 1991) and Social Evolutionism: A Critical History (Basil Blackwell, 1990). He is currently working on a book that will develop and empirically demonstrate a formal theory of long-term sociocultural evolution. Jane Schneider is Professor of Anthropology at the City University of New York's Graduate Center. She has conducted anthropological field research in Sicily and is the co-author, with Peter Schneider, of a 1976 book, Culture and Political Economy in Western Sicily. A second book, covering the demographic transition in Sicily, is in progress. Other publications relate to a secondary interest -- the comparative history of cloth, clothing, and textile manufacture. An artical on the "Anthropology of Cloth" for the 1987 Annual Review of Anthropology is one example. David Wilkinson is Professor of Political Science at the University of California-Los Angeles. He lives in the semiperiphery of Los Angeles but commutes frequently to the core, where he works in the semiperiphery of a discipline whose core (he thinks) is very slowly moving his way.