A recurring pattern of partial correlations between word order variation and scope possibilities (the 3 ⁄ 4 signature) supports a particular view of economy constraints in syntax, with these properties: (1) There are economy conditions (soft constraints) that value a particular type of correspondence between LF and PF representations. (2) These constraints are unidirectional: LF (broadly construed) is calculated first and determines PF (surface word order). (3) Scope rigidity is a property not of languages but of specific configurations, and the distribution of rigidity effects is (largely) predictable from independent variation in the syntactic resources of various languages.We focus here on the interaction of these three assumptions and on the role of (2) in predicting the 3 ⁄ 4 signature effect. We contrast our proposal with Reinhart's (2005) Interface Economy model, in which economy conditions regulate a mapping that takes overt structure as its input and yields permissible interpretations.
OverviewOur primary concern in this article is the relationship between word order and (certain aspects of ) interpretation. It is a commonplace observation that there appears to be an inverse correlation between rigid word order and scope rigidity: languages with free word order are often said to ''wear their LF [scope] on their sleeves'' (Szabolcsi 1997:111), while languages with restricted possibilities for word order permutation, like English, have a high tolerance for scope ambiguity. Our focus here is not on this (inverse) correlation per se, but on the particular ways in which For useful feedback, we wish to thank as well as the participants in seminars at the University of Connecticut (Spring 2007(Spring , 2009) and audiences at Nanzan University, Harvard University, GLOW 31 (Newcastle), CGSW 23 (Edinburgh), and PLC 33. We also thank the anonymous referees for their very helpful comments and suggestions. Our names are listed in alphabetical order.