Dr. Sheffi is a former director of MIT's Engineering Systems Division, and holds a dual appointment at the Department of Civil and Environmental Engineering and at the Engineering Systems Division. He is an expert in systems optimization, risk analysis and supply chain management, which are the subjects he teaches and researches at MIT. He is the author of dozens of scientific publications and three books. Outside the university, Professor Sheffi is an active entrepreneur, having founded five successful companies, and a sought-after speaker in corporate and professional events. He obtained his B.Sc. from the Technion in Israel in 1975, his S.M. from MIT in 1977, and Ph.D. from MIT in 1978.