Ke, Changxia Public Economics, MPI for Tax Law and Public Finance, Max Planck Society;
http://ssrn.com/abstract=1934762 (Preprint)
Ke, C., & Bayer, R.-C. (2011). Discounts and Consumer Search Behavior: The Role of Framing. Working Paper of the Max Planck Institute for Tax Law and Public Finance, 2011-11.