In Aug. 2015, marketers were less optimistic (drop in percentage points) about an array of goals (customer acquisition, customer purchase volume, purchase of related products and services, increased customer retention, increased entry of new customers into the market, increased customer price per unit) than they were in Feb. 2015 (research from @DukeFuqua). However, marketers are less skeptical about mobile - respondents expect the average 6.0% of marketing budgets dedicated to mobile to grow to 15.6% in 2018. @eMarketer expects mobile advertising spending to reach $30.45B in the US in 2015 (16.6% of ad budgets) and by 2019 28.9%. - Link