Changing the order of options on a McDonald 's menu led to a change in sales. So, for 12 weeks across 622 stores, the team swapped Coke Zero from the third location to the first, and put Coca-Cola in the last position. Moving the Coke Zero icon on digital menus of 622 stores from the first to third position, while moving the regular McDonald 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 Sprite Zero , 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 622 stores from the first to third position, while moving the regular McDonald 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 Sprite Zero , writing in Psychology & Marketing , commented on the importance of fitting interventions into existing choice environments to modify real-world behaviour—so called "nudges."