Demography: Why or Why Not?

Historically, why did soom population centers in the EB setting grow or why did others not so much? Has the topic of ancient demography, as in the nature and rate of population increase and decline, been much discussed within the form? I can't remember seeing a single tread with a title that would suggest it had in any detail, in the last 6 months? Maybe, I'm wrong?

Well italy for one is in the center of the mediterranean, as is greece. So at least theres that. I'm pretty sure others just depended on grain or things like that, like the nile.