The transition from the hunting and food-gathering stage of the Palaeolithic and Mesolithic to the productive stage of the Neolithic Period was marked by the organization of settlements with a permanent character and the systematic practice of farming and stock-rearing. The transition process to the so-called Neolithic way of production (Neolithization) took place in the Aegean in the first half of the 7th millenium BC, earlier than in the Balkans and the rest of Europe.

Archaeological data, particularly flora and fauna remains as well as stone tools, from the few settlements of the Pre-Pottery Neolithic have puzzled archaeologists as to the origins of the productive way of life in Greece. The main views regarding this issue are summarized as follows:
1. The transition took place in Greece, it was in other words indigenous, and has been confirmed by settlements of a permanent character situated at Yioura in the North Sporades, at Maroulas on Kythnos, and Franchthi in Hermionid, where, besides the building remains, burials of members of the first small communities have been observed. These sites date to the Mesolithic Period and are associated with specialization in fishing, with primitive cultivation and milling of wild forms of cereals (Franchthi, Theopetra) and domestication of wild animals (wild boar at Yioura).
2. Neolithic economy was introduced in the Aegean from Asia Minor, where it had been adopted a little earlier. This theory bases its arguments on the small number of sites of the Pre-Pottery Neolithic, traced in the eastern part of the Greek mainland (Argissa, Sesklo, Franchthi, Knossos), stone tools corresponding to those of the settlements in Asia Minor and the presence of domestic sheep and goats, whose wild forms did not exist formerly in Greece. In this theory the Aegean Islands play an important role.
3. Greece participated -to the extent the geomorphology, climate, wild fauna and flora of the area made this feasible- in the process of transition to the Neolithic way of life that began around 9000 BC, in the Near East. Recent investigations in the Near East, Asia Minor and the Aegean have added new data that refute the earlier view about a nuclear zone in the Near East ("fertile crescent"), where the productive stage of the economy was established and disseminated to the west. The finds of the Mesolithic Period in Greece mentioned above are links in a long chain of the quest for the origins of agriculture and animal husbandry. The conquests of the Mesolithic were reinforced and enlarged with the contacts taking place either via the Aegean islands or Thrace.