This paper focuses on two types of predicate ellipsis, namely Verbal Phrase Ellipsis (VPE), also known in the literature as Verb-stranding ellipsis, and Tense Phrase Ellipsis (TPE), also called Stripping or Polarity Ellipsis. It suggests that the polarity-encoding functional category ΣP is involved in the licensing of both types of predicate ellipsis, but only VPE requires that the verb be morphosyntactically associated with the Σ-head. The more restrictive licensing conditions imposed on VPE, relative to TPE, explain its more restricted distribution across languages. At the same time, it permits to account for the correlation between the availability of VPE and a particular type of (typologically rarer) answering system where the bare verb...