No creoles?
Damián Blasi, Susanne Michaelis and Martin Haspelmath, "Grammars are robustly transmitted even during the emergence of creole languages", Nature Human Behaviour 2017:
[W]e analyse 48 creole languages and 111 non-creole languages from all continents and conclude that the similarities (and differences) between creoles can be explained by genealogical and contact processes, as with non-creole languages, with the difference that creoles have more than one language in their ancestry. While a creole profile can be detected statistically, this stems from an over-representation of Western European and West African languages in their context of emergence. Our findings call into question the existence of a pidgin stage in creole development and of creole-specific innovations. In general, given their extreme conditions of emergence, they lend support to the idea that language learning and transmission are remarkably resilient processes.
Email from Damián Blasi puts it more bluntly:
The basic conclusions are that 1) creoles clearly continue the linguistic structure of the languages that preceded them, 2) we don't have any evidence for a pidgin stage preceding creoles and 3) no evidence for purely creole features (like SVO) whatsoever.
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