Topic: Research News

A new study found that people tip for two main reasons: to show appreciation or to follow social norms. This dynamic can lead to rising tipping percentages over time.

Have you ever wondered why people leave tips at restaurants? A recent study by Dr. Ran Snitkovsky and Prof. Laurens Debo explored this phenomenon. They found that there are two main motivations behind tipping: genuine appreciation for good service or pressure to follow social norms.

The researchers used a mathematical model to understand these motivations. They discovered that customers who truly value the service they received tend to leave more than the average tip, while those who are mainly motivated by social expectations tend to match whatever the average tip appears to be.

This dynamic can lead to rising tipping percentages over time, especially in places where tipping is common. For example, a recent study found that the average American spends nearly $500 a year on tips at restaurants and bars, generating more than $50 billion annually.

The researchers also examined whether tipping truly motivates better performance from servers. Their model suggests that it may not necessarily improve service quality. Instead, it could be driven by psychological and behavioral considerations.

Implications

A new study found that people tip for two main reasons: to show appreciation or to follow social norms. This dynamic can lead to rising tipping percentages over time.