Cooperativity Markers in the Left Periphery. Evidence from Sicilian and from Lombard Italian

This paper investigates two Italo-Romance discourse particles, which we analyze as 'cooperativity markers', conveying the conventional implicature that a future action to be accomplished by the speaker fulfills a set of maximal preferences that they share with the addressee; by means of this implicature, the speaker conveys that they intend their action to be cooperative. We show that clauses introduced by these particles share core syntactic and semantic properties with jussive expressions such as imperatives, most notably future orientation and a constraint on the person specification of the null subject. We argue that these particles occupy a functional projection which encodes preferential meanings and takes scope above Tense.