Is 'out of control' US tipping culture spreading overseas?
Michael Lynn is the author of the book The Psychology of Tipping. A professor of consumer behaviour and marketing at Cornell University in New York
Michael Lynn is the author of the book The Psychology of Tipping. A professor of consumer behaviour and marketing at Cornell University in New York State, he says that the rise in tipping globally is being driven by the digital payment machines that people have to tap with their bank card. These increasingly now prompt the customer to add a tip.
