Piper Jaffray's Rattner Discusses State Credit Enhancement, Oversight Published May 6, 2013 4:28 PM | Updated February 4, 2020 2:39 PM 3:32 Facebook Twitter LinkedIn Email Yaffa Rattner, managing director at Piper Jaffray speaks with The Bond Buyer's Taylor Riggs at the recent National Municipal Bond Summit about pricing of credits with enhanced state oversight and how investors price insurance in the market.