Urban geographers such as Jane Jacobs and Ed Soja make the claim that hunter-gatherers formed dense settlements in places such as Jericho and Catal Huyuk, before forming agricultural societies, and...

Urban geographers such as Jane Jacobs and Ed Soja make the claim that hunter-gatherers formed dense settlements in places such as Jericho and Catal Huyuk, before forming agricultural societies, and that the synergy afforded by humans living in proximity was one of the drivers for the very innovation of agriculture If you accept their thesis, what are the likely reasons for the subsequent development of larger urban settlements? Where, for instance, did farmers trade their produce and how did people ensure that products other than food were widely available in prehistoric times?