Changing the Game in Strategic Sourcing at Procter & Gamble: Expressive Competition Enabled by Optimization.Published in:Interfaces, 2006, v. 36, n. 1, p. 55, doi. 10.1287/inte.1050.0185By:Sandholm, Tuomas;Levine, David;Concordia, Michael;Martyn, Paul;Hughes, Rick;Jacobs, Jim;Begg, DennisPublication type:Article