Dr. Christensen is chairman of Christensen Associates. During 20 years as professor of Economics at the University of Wisconsin-Madison, Dr. Christensen published 65 articles in leading economic journals and established himself as an authority on applied microeconomics, economic evaluation, and econometric modeling. He has testified in landmark cases such as DOJ v. AT&T, and Polaroid v Kodak. Dr. Christensen received his Ph.D in economics in 1968 from the University of California, Berkeley.