KOEN PAUWELS is an award-winning professor, consultant, and expert on the topic of marketing ROI. After receiving his Ph.D. at UCLA, he taught at Dartmouth's Tuck School of Business before joining ...view moreKOEN PAUWELS is an award-winning professor, consultant, and expert on the topic of marketing ROI. After receiving his Ph.D. at UCLA, he taught at Dartmouth's Tuck School of Business before joining Ozyegin University.view less