Could you name projects for economic collaboration that were seriously planned or considered, but which were not realized in OTL?
With economic collaboration I mean plans for free trade zones, customs unions or currency unions, plans for transnational electricity networks or similar projects. I would also be interested in forms of economic co-operation that were ended in the Twentieth Century in OTL, but that might have been continued, or others that might have been intensified in another timeline.
Of course any information on suitable PODs to make these forms of collaborations happen are highly welcome.