Jeremiah Owyang, Founder of Crowd Companies, thinks that the sharing economy—though he prefers the term collaborative economy—could exceed PwC’s projections of $335 billion in revenue by 2025. “There’s really no question whether it’s going to happen or not,” Owyang said of the high rates of adoption of peer-to-peer platforms. “The question [for cities] is – what are you going to do about it? Cities need to move forward and embrace these models.” Owyang’s company helps larger companies incorporate aspects of the collaborative economy into their businesses. He created the popular honeycomb model of the collaborative economy, which breaks down its various subsets, from vehicle sharing, to health, to learning.