A survey of 123 marketers and 1,002 consumers on marketing practices and how they relate to permission has revealed a significant gap in perceptions regarding implicit permission (purchases, contents, product demos, registrations). The study, by RegReady, found that 77% of marketers believe that a consumer purchase does constitute marketing permission. But three-quarters of the consumers polled felt very strongly that making a purchase does not constitute permission to market to them on their mobile device, and 80% shared that sentiment about marketing via email. Still, 47% of marketers said they send email to purchasers without permission.

via Consumers and Marketers Differ on Acceptability of Implicit Permission.