"Studies carried out by both McAfee and VeriSign independently show that online sales increase from 10% to 36%" I read this as "Vendors showed that their own p

"Studies carried out by both McAfee and VeriSign independently show that online sales increase from 10% to 36%" I read this as "Vendors showed that their own products are great for you, buy them!" I've seen other "studies", posted on HN, which showed that these seals can decrease sales.