Connected TV and social media platforms remain the top two channels in which advertisers say they will increase their investment, according to new data from Advertiser Perceptions, a research firm that tracks the attitudes of marketers and agencies. The reason is simple: advertisers perceive the channels as more measurable and more affordable than other platforms, and believe that return on investment is growing, Nicole Perrin, Advertiser Perception’s SVP of business intelligence, told Marketing Brew.