As you see, xp is great problem in erepublik. We see xp limits for divisions in erepublik were changed.
That is not permanent solution.
We can also see it is hard to make some profit currently, since the wep raw is so high, and wep prices are not so high.
If we remove xp gained form working in your own companies, that would make "younger players" to invest in their own production, and stronger players with large productions would not grow so fast in xp (they grow much faster in xp than most of the decent low division players).
This would be both good for raw materials prices, hence they would drop, and it will be good since no longer the great xp gap will be widened (older players that fight and produce much more than young players would gain only xp for fighting)
Also i think the prices of the raw companies should all be in either gold or cc, since the "old" prices were good only back in the old days when the gold was much stronger.