I really appreciated the addition of a "No Tech Brokering" option to GC2. It might be nice to see an extension of the idea that uses the 'points-not-complete-techs' idea Wintersong mentioned for stolen and/or traded techs. If my faction did not learn a tech independently, it should be harder (or impossible) for us to offer it as a trade item. But we should be able to 'finish' the research if we want to, enabling us to trade it as if we'd done all the research from scratch.
