Recently, linguists have discovered (or, more accurately, rediscovered) the role that historical linguistics can legitimately play in providing explanations for the facts of synchronic language types. Greater awareness of synchronic variability and its source in historical changes in progress has focused attention on the concept of a language as a system not of static structures, but of interacting processes which the individual speaker becomes involved in as he/she acquires the language and enters the language community (Weinreich, Labov & Herzog, 1968). These processes are hypothesized to be universal, in that they may occur in any language family at any time period (though the initial actuation of a change is still a riddle, ibid. 102).

The key assumption in the standard generative approach to historical linguistics (King, 1969) is that each sound change is incorporated directly into the native speaker's grammar as the final phonological rule, moving up gradually into the grammar as further changes are implemented. Restructuring of underlying representations by later generations during acquisition is theoretically permitted, but infrequently invoked, with the result that the historical phonology of a language will be almost directly mirrored in the order of its phonological rules. The only extractable generalizations are then that the ‘highest’ rules will correspond to the oldest changes, and that a sound change and the rule into which it is converted will tend to be identical or at least show a high degree of similarity in formulation. This approach casts no light at all on the problem of the implementation of sound change.

In the search for linguistic universals which typifies the generative approach to grammar, nothing is as revealing as phenomena which manifest themselves in a wide variety of languages. By exploring the similarities and differences that we find in a single phenomenon cross-linguistically, we can gain insight into the nature of the linguistic universals that are responsible for the phenomenon in question. This study is an investigation into one such phenomenon, morphological causativization (henceforth causativization), which may be illustrated by the following examples from a variety of languages.

Chomsky (1981: 188, 220; 1986a: 166) formulates the Binding Theory essentially as in (1).

(1) (A) An anaphor must be locally bound

(B) A pronoun must not be locally bound

(C) An R-expression must not be bound

The notion ‘bound’ is defined as ‘c-commanded by a co-referential element’. As for the notion ‘locally’, that of Chomsky (1986a) differs somewhat from that of Chomsky (1981), and much recent literature addresses the issue, especially in connection with the phenomenon of ‘Long Distance Anaphora’. (For relevant discussion see Burzio (1989c and references therein) and also Levinson, this volume.) For most of our purposes, it will be sufficient to assume Chomsky's (1981: 188) ‘within its [i.e. the anaphor's/pronoun‘s] governing category’, or even the formally simpler (though empirically less adequate) ‘within the same minimal clause’. The empirical effects of the Binding Theory in (1) can then be illustrated as in (2a, b, c) – instances of local binding, non-local binding, and no binding respectively. In each case the connecting line expresses intended co-reference, much as co-indexation in later examples. Each ungrammatical case is accounted for by the principle indicated in parentheses.

In an earlier article (Levinson, 1987b), I raised the possibility that a Gricean theory of implicature might provide a systematic partial reduction of the Binding Conditions; the briefest of outlines is given in Section 2.1 below but the argumentation will be found in the earlier article. In this article I want, first, to show how that account might be further justified and extended, but then to introduce a radical alternative. This alternative uses the same pragmatic framework, but gives an account better adjusted to some languages. Finally, I shall attempt to show that both accounts can be combined by taking a diachronic perspective. The attraction of the combined account is that, suddenly, many facts about long-range reflexives and their associated logophoricity fall into place.