The team at Invesp recently published an infographic highlighting the trends in US Social Commerce. The infographic specifically focuses on trends from 2012-2015 in the United States alone and contains some very interesting statistics.
This is valuable information because social users are also collaborative economy (or sharing economy) users. The same people who actively use the largest social media sites are also the people who rent on Airbnb or list an item on eBay.
That means more people are becoming comfortable not only shopping online, but shopping on a social network which will inevitably lead to the increase of purchasing or renting from a peer.
Check out Vision Critical's report on sharers and you'll see how social media paved the way for peer-to-peer and why we think the way social media use exploded, so will peer-to-peer.