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Mühlenbernd, Roland; Enke, Dankmar (2017): The grammaticalization cycle of the progressive A game-theoretic analysis. In: Morphology, Vol. 27, No. 4: pp. 497-526
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A well-attested phenomenon in morpho-semantic change is known as the progressive cycle, which depicts a directed and cyclic pathway of a grammatical progressive marker through its emergence and disappearance inside the imperfective domain. Deo (2015) offers a model within the framework of evolutionary game theory to study the evolutionary dynamics of four preselected types of progressive-imperfective grammars. Based on her basic game-theoretic model, we investigate which types of grammars would emerge from the first principles in a population of agents under reinforcement learning. In our computational model, the actual progressive-imperfective cycle can be reconstructed from such atomic interactions between learner agents after the addition of several simple assumptions to the basic game-theoretic model.