Modern functionalist approaches to syntax were pioneered in the 1920s by the
scholars associated with the Linguistic Circle of Prague and Prague-based
functionalism is a dynamic force today. Nevertheless, citations of this work by North
American functionalists are few and far between. This paper sets out to explain that
state of affairs. It pinpoints the profound theoretical differences between mainstream
North American and Czech approaches that have led to partisans of the former losing
interest in the latter. The paper argues that, on the other hand, Praguian functional
syntax has a great deal in common with more ‘formal’ functionalist approaches and
with much work in formal semantics. Not surprisingly, then, recent years have seen
increasing productive collaboration between North American and Western European
practitioners of these approaches and members of the Prague School.