Using a computational model to quantify the potential impact of changing the placement of healthy beverages in stores as an intervention to “Nudge” adolescent behavior choice

Table 1 Model Input parameters and values

Parameter	Probability of non-SSB purchase	Source
Base preference Probability
Always SSB	0	[9]
Usually SSB	0 – 28.4	[9]
Sometimes SSB	28. 5 – 54.4	[9]
Rare/never SSB	>54.4	[9]
“Convenience shopper” Probability
Baseline “convenience shopper”	32.6	[11]
Loyalty
Always SSB	27.0	[5]
Usually SSB	75.0	[5]
Sometimes SSB	100.0	[5]
Rare/never SSB	27.0	[5]
Horizontal Effect ^b
Cooler 1	17.9	[7]
Cooler 2	17.4	[7]
Cooler 3	16.9	[7]
Cooler 4	16.4	[7]
Cooler 5	15.9	[7]
Cooler 6 (back)	15.4	[7]
Vertical Effect ^b
Shelf 1 (top)	17.0	[7]
Shelf 2	17.2	[7]
Shelf 3	17.1	[7]
Shelf 4	16.8	[7]
Shelf 5	16.3	[7]
Shelf 6	15.5	[7]

Notes:
^aProbabilities of being a convenience shopper were calculated as the product of the baseline probability of being a convenience shopper and the probabilities associated with brand loyalty for each type of SSB drinker
^bHorizontal and Vertical effects were calculated based upon regression coefficient parameters obtained from [7] and average retail beverage cooler dimensions

ISSN: 1471-2458