This is about production. The reason production was changed was that some considered it op in the base game. Ironically this complaint was not in 2. Once the wheel was removed everything had the value of base production. What this means is that science and wealth is 300 percent higher. While manufacturing is 300 percent except. When your done building social doesnt count towards military, or military doesnt count towards social if your not sponcering a shipyard. 

I could remedy this by deviding my production by one third for science or wealth, but dividing my production by one sixth for ship and planet construction.

2 was done differently where there was no production complaints. There werent three with one devided in half. First there was production what wasnt production was cash. With taxation as an optional way to raise money. With taxation i wouldnt need to lower production in the end game to raise money, so i dont know where to rank that. Besides that, there were four areas we could devide production by 25 percent maney, science, social, and military production.