Antony Lewis
Joseph Stiglitz
Michael Lewis
Tony Robbins
Lee G. Bolman
Steven J. Stein
Joe Vitale
E. F. Schumacher
Joseph E. Stiglitz
Steven D. Levitt
Klaus Schwab
Ram Charan
Andrea C. Hoffmann , Farida Khalaf
Max Altschuler
Kathryn D. Cramer
Andreas B. Eisingerich , C. Whan Park , Deborah J. MacInnis
Christian Stadler
Jon Younger
Simon Sinek