Olga Fischer presents a critical analysis of morphosyntactic change and the
mechanisms that trigger it. She shows how changes in discourse, lexicon,
semantics, pragmatics, and sound interact with changes in morphosyntax, and
considers the interface between the internal and external factors of
change. She reveals how rates and speed of change in morphosyntax can be
used to explore the degree to which grammar is innate or learned. Her book
will be of central interest and value to students of linguistic change, at
graduate level and above.