dent, technology and corporate development, and chief technical officer. His responsibilities included long-term strategic planning and overall product architecture for N.E.T. and ADAPTIVE, as well as the investment strategy for R&D spending, and advanced R&D activities. Before joining N.E.T. in 1990, Mr. Bressler spent 4 years at 3Com Corporation. His most recent assignment at 3Com was as chief technical officer and vice-president, corporate development. His responsibilities included overall product strategy for 3Com, and, in particular, the creation, with Microsoft, of the OS/2 LAN Manager. Prior to joining 3Com in 1986, Mr. Bressler spent more than 13 years with Bolt, Beranek, and Newman, Inc. (BBN), in Cambridge, Massachusetts, where he held a variety of senior management positions, most recently senior vice-president of development and engineering for BBN Communications. At BBN, Mr. Bressler played a key role in the management and development of packet switching for data communications including the ARPANET and the evolution of protocols including TCP/IP, X.25, satellite-based communications, and data communications security. Mr. Bressler holds both an MSEE and a BSEE from the Massachusetts Institute of Technology. His thesis topic was in the area of distributed computing, the research for which was all done on the ARPANET.

PAUL DAVID is an economist and economic historian who has held the William Robertson Coe Professorship of American Economic History at Stanford University since 1978. He was educated at Harvard University and the University of Cambridge, and joined the Stanford Economics Department in 1961. The evolution and diffusion of technological systems and the role of technological and organizational innovation in long-term economic growth have been focal points in Dr. David's research and teaching, which has included such themes as the importance of the systems approach to understanding technological change, the economic significance of network externalities and technical standards in system development, and the "path-dependent," historical character of these processes. A frequent contributor to books and scholarly journals, Dr. David currently co-edits Economics of Innovation and New Technology and serves on the editorial boards of Computers, Standards and Interfaces the Journal of Industrial and Corporate Change, and other journals. He has been a consultant to the National Research Council, the Library of Congress, the World Bank, the Organisation for Economic Cooperation and Development, and other national and international bodies. Dr. David is a Fellow of the American Academy of Arts and Sciences and a Fellow of the International Econometric Society. In May of 1993 he was elected to a senior research fellowship in economics at All Souls College, Oxford.

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