= " about applying to the city what was learned from the “sharing economy” to achieve greater well-being with a more efficient use of public resources from the joint work of citizen groups, businesses and local administrations". 
"What exactly is a “sharing city”? It’s one that encourages carsharing and bikesharing programs through specific policies, such as designating “pick-up spots” for ridesharing and altering local taxes to make carsharing more attractive. A sharing city is one that encourages urban agriculture on vacant lots and allows homegrown vegetables to be sold in the neighborhood. A shareable city supports innovations like shared workspaces, shared commercial kitchens, community-financed start-ups, community-owned commercial centers, and spaces for “pop-up” businesses. It also encourages home-based micro-enterprises by lowering permitting barriers." (http://bollier.org/blog/how-build-%E2%80%9Cshareable-city%E2%80%9D)
David de Ugarte:
"*- Shared Transportation. The integration of car-sharing and bicycle rental on public transportation networks, following the Bremen model, is beginning to spread across both the USA and Europe.
- Administration as citizen platform. Sharing services and consumer goods allows a more efficient use of resources and therefore reduces waste and its treatment and management costs. That’s what “Zero Waste,” waste-treatment business of South Australia’s government, thought, and so it launched “Share and Save.” It’s an open-source web platform that lists and geopositions all activities and citizen exchanges oriented to sharing all kinds of things.
- Services and distributed infrastructures. These are movements that make real the possibility of creating abundance through participation and citizen collaboration in distributed networks. They have demonstrated their ability in matters as apparently difficult and costly as the generation of a free (libre) citizen telecommunications infrastructure on the guifi.net model — or renewable energy — somenergia.coop- where models and technological alternatives for distributed production are emerging.
- The new Urban Commons. With the economic crisis, many city halls gave space to self-managed and open groups of citizens for all manner of social activities that were incorporated into public services. It’s a new urban “commons” of spaces and services that is taking the lead not only in entertainment-educational services — like urban gardens — but that also serve as a base for new municipal systems of citizenship co-management like accompanying senior citizens with volunteers, etc."
- The landmark report, “Policies for Shareable Cities: A Sharing Economy Policy Primer for Urban Leaders,” pulls together “scores of innovative, high impact policies that US city governments have put in place to help citizens share resources, co-produce, and create their own jobs.”