freethink
Prince
Could there be a military company that appears in civs with more military than their allowed number (for maintenance)Yeah it would affect espionage too - I just didn't mention it because there isn't any corporation that produces espionage right now.
"Yield" is exactly the opposite of "commerce": the yield types in the game are food, production, commerce, and the commerce types are gold, science, culture, espionage. These terms aren't well defined in the game and come directly from the code - still I think it is the best way to describe it.