By raising money from a large number of people via the internet, crowdfunding offers the promise of a “democratization of finance”. Recently, the crowdfunding of large-scale urban projects appears to have gained traction as a handful of high-profile real estate and infrastructure projects...

The growing importance of nonmarket assets such as the environment, combined with the unprecedented availability of high-resolution data, has renewed broad interest in quantifying sustainability at different spatial levels. Policy-related decision making requires that potential sustainability...