I'm having a tough time trying to decide which one out of the 10 I should to take forward. It's a cross between Velib, The 4-day workweek, the Grid and Carrotmobbing.
I'm going to base my choice on a short analysis of their individual success, setbacks/complications, adaptibility and ability to translate into other cultures/countries.
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I'm going with 'Carrotmobbing'.