normally i dont bother much with population buildings. a farm and an entertainment building on each 10+ planet and i get more then enough tax revenue to fund all my production / research planets
last game i had one very high level planet, think it was like 17 or so, which had two tiles with farming bonus, one 300% and one 100%
i wanted to try out how really high population would affect my style of play so i used both tiles and gave that planet lots of morale buildings + some tax buildings
surprisingly, even without any labs, the planet startet to get lots and lots of research pointer
does population add to production/research? if yes: maybe having lots of farms and few factories is after all worth it ... a little less production but a LOT more money
