There has been a proposal in Circular Economy about creating an Exchange Network between LNs, which should be based on Collective Purchases in order to make it efficient to carry products between them.
We should give it some thought and debate on that issue, as also make a new system probably, inside FairMarket, explicitly for that LNs network to serve their users better.
For example, one drawback that I've encountered trying to set-up a Collective Purchase of products from Heraklion LN to other LNs, is that we would need to set one Collective Purchase for each other LN in Europe (where we can deliver). Maybe we could enhance that procedure by somehow duplicating the Collective Purchase for different destinations each time.
Another problem is that, if at the end a user was trying to browse the Collective Purchases (s)he would come up with a big list and thus difficult to make out which ones refer to its LN and where they come from. I was thinking of a Collective Purchases view more defined to the user's LN, thus providing him/her all the available products existing at Collective Purchases for his/hers LN. (having asked that info beforehand of course)