Jason Merchant is Professor of Linguistics at the University of Chicago. He has written extensively on ellipsis, including on sluicing, swiping, fragment answers, verb phrase ellipsis, antecedent-contained ellipsis, comparative ellipsis, and nominal ellipsis. His other interests are in case, split ergativity, locality, islands, agreement, and topics in the syntax-semantics interface. His primary language areas are in Germanic, Greek, and Romance. He studied at Yale, Tübingen, Utrecht, and the University of California at Santa Cruz, where he received his Ph.D. in 1999. ; Andrew Simpson is Professor of Linguistics and East Asian Languages and Cultures at the University of Southern California. His research is focused on the comparative syntax of East, Southeast and South Asian languages, in particular Chinese, Japanese, Korean, Thai, Vietnamese, Burmese, Bangla and Hindi.