Which mathematician's algorithm revolutionized online retail by creating the first widely successful recommendation system, now used by nearly every major e-commerce platform?

The intersection of mathematics and marketing has led to some revolutionary approaches in retail strategy. From complex algorithms that predict consumer behavior to statistical models that optimize pricing, mathematics has transformed how brands connect with customers. This poll tests your knowledge about a famous mathematical marketing innovation that changed an entire industry's approach to customer engagement.

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John Nash (whose game theory models became the foundation for dynamic pricing)
Loren Shuster (who pioneered A/B testing statistical frameworks for digital marketing)
Jennifer Chayes (whose network theory algorithms optimized social media marketing)
Greg Linden (whose item-to-item collaborative filtering algorithm was implemented at Amazon)