The news: Worldwide ad spend will grow by 10.6% year over year (YoY) in 2021, per the consensus of ad spend forecasts from media agencies Dentsu Aegis, GroupM, Magna, and Zenith. That’s up by 3.3 percentage points from January 2020’s consensus of 7.3%. Key stat: We updated our forecast in March 2021, estimating that worldwide total media ad spend will grow by 15.0% this year to $747.67 billion.

For instance, consumers worldwide are spending over an hour each day this year with digital video on mobile devices, according to Zenith. eMarketer was pleased to moderate a Tech-Talk Webinar featuring Jonas Olsen, vice president of video at PubMatic. He discussed how publisher programmatic strategies can drive video ad monetization. View this webinar and learn:.

Given the estimates of the size of programmatic ad spend this year—about $84 billion worldwide, according to Zenith—Juniper’s estimate represents about half of programmatic display dollars going to fraud. A few factors contribute to this huge disparity in figures.