Changing the order of options on a McDonald's menu led to a change in sales. The study found that when customers were given more options, they spent more. This is according to a 12-week study by researchers from Manchester Metropolitan University. Lead researcher Kelly Ann Schmidtke, writing in Psychology & Marketing, commented on the importance of fitting interventions into existing choice environments to modify real-world behaviour—so called "nudges."
Changing the order of options on a McDonald's menu led to a change in sales. Moving the Coke Zero icon on digital menus of more than 500 stores from the third to first position, while moving the regular Coca-Cola icon from first to last, led to increased sales of Coke Zero by 30% and decreased sales of Coca-Cola by 7%. This is according to a 12-week study by researchers from Manchester Metropolitan University. Lead researcher Kelly Ann Schmidtke, writing in Psychology & Marketing, commented on the importance of fitting interventions into existing choice environments to modify real-world behaviour—so called "nudges."