These establishments have seen an average increase of 8.4% in sales following a promotional game.
The retailers tracked by Thomson Reuters posted in October an average increase of 3.4 percent in sales at stores open at least a year compared with the same month last year, missing analyst estimates of 4.5 percent.
Laptop sales from the first three quarters of 2008 showed an average increase of 40% compared to the previous year.
Within the first day, iPhone developers see an average increase of 41% in revenue using this method, and see revenue increases of 22% by the sale's end.
Over the test last year period the average increase in sales is about 80% and only about 35% of the number is repurchased.
After implementation, the average number of stocked essential medicines increased significantly to 250, and the average proportion of sales that were essential medicines increased to 19.4%%.
It said it had now reduced prices on more than 1,100 items, resulting in an average sales increase of 3% on these products.
When the Federated Department Store chain Macy's had AdSpace displays installed in some locations they saw an average sales increase of 10%.
The national sales average increased from $3.2 million to about $4.1 million over the 6-year period.
Over the last five years, each of these firms showed an average annual earnings increase of at least 36%, as well as average annualized sales growth of 31%.
