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Tip pressure might work in the moment, but customers are less likely to return

Have you ever hesitated at the register, uncomfortable as an employee watched you choose a tip? It's not just you. The rise of digital tipping systems—from point-of-sale devices held by employees to countertop screens that clearly display your selection—is changing the dynamics of tipping, often in ways that make customers feel scrutinized.

As who study , we wanted to find out how customers respond to this sort of "tip surveillance." So we conducted a field study analyzing 36,000 transactions and did four controlled experiments with more than 1,100 participants.

We compared tipping setups with less privacy—such as when firms use handheld payment systems, when employees are facing customers, and when apps immediately show tips to employees—with setups with more privacy, such as countertop payment systems, employees who face away from customers, and apps that disclose tips only after the service.

Our : High levels of surveillance are bad for business. Customers who felt watched while tipping were less likely to make a return visit or recommend a business. While privacy often made customers feel more generous and in control of their decisions, feeling scrutinized led to resentment and reduced loyalty.

Interestingly, research shows that people when they donate to charity. So why does tipping feel different? Perhaps because tipping isn't entirely voluntary—it's often seen as an expectation. When customers feel pressured, they lose the sense of control that makes tipping a positive experience.

Welcome to the payment panopticon

While digital tipping , it can also contribute to "tipflation"— . If companies want to make sure customers keep coming back, our research indicates they would do well to give customers privacy to tip.

One issue might be that some employees think watching customers closely . We didn't find a straightforward relationship, however, between tipping privacy and tip amounts. While privacy empowers customers to tip less if they choose, we found it also often encourages them to feel more generous. These effects mean that customers tip similar amounts whether they have privacy or not.

For companies, striking the right balance between giving customers control and fostering generosity is crucial. A business that trains its employees to give customers privacy to tip—and makes sure to pay those employees fairly, so they don't need to pressure customers in the first place—will likely develop a better reputation and a more loyal customer base.

The next horizons of tipping

Tipping can be a feel-good experience, enhancing and . It can also be a source of . And for better or worse, digital technology is . Today, people tip , for more services, and than ever before.

As businesses, customers and debate how to best integrate digital tipping into our world, our research shows the importance of thinking holistically. In our view, the focus shouldn't just be on but also on .

More broadly, customers, workers, businesses and society may want to consider how to create a system of tipping that protects workers' rights and dignity while guaranteeing fair pay, and that allows customers and business owners to reward employees by providing great service.