No, just NO. Cutting research points won't solve anything. We already had prices raised across the board and all it did was impede air and naval units acquisition so everyone builds only hunters and tanks now. Great.
Of course land advantage will result in economy advantage, that's how it SHOULD be.
Real problem here is that AI doesn't actively expand and doesn't fortify its provinces. This needs fixing. The other "fixes" will just further delay advanced units and cut away tactical variance.
Then again, in RTS mode you can turn into Dragon demigod and annihilate armies so trying to balance AI without removing that is a little futile in my eyes.
