type: cross-section
frequency: 1
startobs: 1
endobs: 1140

coke: =1 if coke chosen, =0 if pepsi chosen
pr_pepsi: price of 2 liter bottle of pepsi
pr_coke: price of 2 liter bottle of coke
disp_pepsi: = 1 if pepsi is displayed at time of purchase, otherwise = 0
disp_coke: = 1 if coke is displayed at time of purchase, otherwise = 0
pratio: price of coke relative to price of pepsi
