Mexico City Crowdsourcing a Constitution: case study

Quite simply, anyone could suggest an idea for the constitution, but a certain threshold of online supporters was required to advance the proposal into contention for the drafting committee. This method gave petitioners an incentive to promote their ideas and encourage support. Those earning at least 5,000 signatures had their ideas sent to the drafting committee's legal experts for review. Those with 10,000 or more signatures won the chance to formally present their ideas to the drafting committee. And 50,000 signatures netted an audience with Mayor Mancera.