The Psychology Behind Related Product Recommendations

By | March 13, 2025

Related product recommendations tap into several psychological principles that influence consumer behavior. By understanding these principles, retailers can strategically present related products that increase the likelihood of additional purchases. Here’s a look at the psychology behind related product recommendations.

1. The Power of Reciprocity
One psychological principle at play when offering related products is reciprocity. When customers feel like they are receiving value, such as discovering a complementary item that enhances their purchase, they are more likely to make an additional purchase in return. For example, offering a free gift or discount on related items encourages customers to feel obliged to make a purchase.

2. Social Proof
Related product recommendations often rely on social proof—the idea that people are influenced by the actions and behaviors of others. By showing that other customers frequently buy the same products together, retailers can tap into this social proof. For example, an online store might show a message like “Customers who bought this item also bought…” to encourage further purchases.

3. Scarcity and Urgency
Scarcity and urgency are powerful psychological triggers. When a related product is shown as limited in stock or available at a special price for a limited time, it can create a sense of urgency. This often prompts customers to purchase the related item before it sells out or the offer expires.

4. Anchoring
Anchoring occurs when customers rely on an initial piece of information (the “anchor”) to make decisions. When recommending related products, retailers can use anchoring by first showing the customer a high-priced item and then presenting a lower-priced related product. This makes the related item seem like a more affordable option, increasing the likelihood of a purchase.

5. The Scarcity Principle
Limited-time offers or low-stock related products create a sense of urgency that pushes customers to buy before they lose the opportunity. Scarcity triggers a fear of missing out (FOMO), which can lead to quicker decision-making and more impulse purchases.

Related product recommendations play a significant role in shaping consumer behavior. By tapping into psychological principles like reciprocity, social proof, and urgency, retailers can increase conversion rates and drive sales.