The Constitutional Council was a body of 25 appointed Icelandic citizens, which was charged with creating a constitutional draft between 6 April and 29 July 2011. Initially the constitution was meant to be revised by a nationally elected assembly, but following a controversial Supreme Court decision to void the assembly elections, the Icelandic parliament (Althingi) appointed the elects to form a council.
Participatory decentralization is the process of handing out legitimate political authority to the citizens. It contributes to democratization by bringing the government ‘closer to the people’, imparting the citizens with political knowledge through their participation in local management, and making the government more accountable. 
This case study features a referendum on a controversial viaduct in Antwerp, Belgium. The construction of this viaduct was highly troubled and costly from the beginning, attracting heavy criticism from multiple groups. A referendum ultimately rejected plans to build the unpopular bridge, instead replacing it with a series of tunnels.