In any event, all three models [Anatolian Neolithic, Near Eastern, Pontic-Caspian] require some form of major language shift despite there being no credible archaeological evidence to demonstrate, through elite dominance or any other mechanism, the type of language shift required to explain, for example, the arrival and dominance of the Indo-Aryans in India.

Mallory (1997) agrees that there is solid evidence in both European and Asiatic stocks for Proto-Indo-European cereals, as well as the agricultural terminology required to process them. He notes that "while the economic emphasis of the immediate ancestors of the Indo-Iranians may have been towards pastoralism there is good evidence that they too are derived from a mixed agricultural population" (236-237)