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This paper is concerned with the social mechanisms of linguistic change, and we begin by noting the distinction drawn by Bynon (1977) between two quite different approaches to the study of linguistic change. The first and more idealized, associated initially with traditional nineteenth century historical linguistics, involves the study of successive ‘states of the language’, states reconstructed by the application of comparative techniques to necessarily partial historical records. Generalizations (in the form of laws) about the relationships between these states may then be made, and more recently the specification of ‘possible’ and ‘impossible’ processes of change has been seen as an important theoretical goal.
Milroy et al. (Sun,) studied this question.
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