David leads Audacious Inquiry's Analytical Services Consulting Practice while serving as a Professor at the Wharton School at the University of Pennsylvania. David teaches marketing strategy and marketing management at Wharton. David's award-winning research in retailing, pricing, customer analysis and spatial diffusion has appeared in numerous leading academic journals. He serves as a consultant, instructor and advisor for both small and large firms and as an expert witness in statistics and marketing. Recent clients include: AXA Financial, Aviva, Rohm & Haas, Shell Oil and Toyota.