The smaller / medium sized AI countries are not trading effectively.
For example, Hungary has a big deficit on energy but surplus on rares.. It won't exchange the goods and its IC is working on like 25% capacity if the human player won't interfere. Noticed this playing Austria as human, and since I'm low on all resources myself I can't really help those guys.
Also I believe they should try selling money and/or supplies for any resource that they lack since the cost in IC is usually less than the IC gained..
What a great mod! I found this a couple of months ago but am getting deeper and deeper and really doubt I'm ever going back to vanilla. So you're getting new fans, guys!