BTW that was on C3C 1.22. Communism is an oft looked over govt just because it comes so late in the game. It's a shame. You can still keep up with the science output (least I could) if you want....up till the mid Modern Age. Demos and Reps will be getting 4 turn tech while Commie govts are stuck at 6-7 turn techs (unless you're deficit spending). Plus you get the bonus of no longer being limited to your core production wise. Although being a bit slower in tech pace shouldn't hurt that bad. You're military is going to generally be bigger and you can go to war indefinately. If they are building the space-ship, just detroy it...MUAHAHAHAHA
I just switched to commie to see how it works. Also because im in the final stage of the game and I will be in war for the rest of the time.
My economy did get a hit. But when the "new" cities (I took them from the arabs) are getting productive, the Polic HQ will reduce their corruption, so in the long run Commie could be better. Not now though.
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The thing I don't like it the 'wip citicen'. I'd rather pay my citicens.