of the university of chicago harris school of public policy. welcome, professor, good to have you. beg yoursay dean, pardon. we have not had the amazon affecting pharmaceuticals, and given the price discovery, it really transform, change the cost curve on pharmaceuticals. is that right? katherine: i think people are placing a lot of hope on the new amazon deal without knowing what it really entails. but there is huge potential to rationalize the way we finance health care and to consolidate the way patients took pharmaceuticals and the effect that has on hospitalizations and downstream health care. david: we have heard for years and talked on bloomberg with you benefite pharmaceutical manufacturers, and the extent to which they at cost to the system. somewhat more opaque and less transparent. is it possible that amazon could cut through that? katherine: having more competitors in that space is bound to squeeze margins and improve the value patients see from the system. right now they don't read the full benefit from lowering of health care costs. better medication management, targeting medicine to the right patients at the right time. this entry could really drive a lot of price competition in