On April 04-07, 2016, the CeSAM jointly organizes the 6th of its regular CEMS PhD courses in finance. The 4-day intensive course will be taught by Jens Christensen (Federal Reserve of San Francisco) at the NBB in Brussels. The course will cover the most recent literature on how to model the term structure of bond yields including the challenges posed by the asymmetric behavior of yields near their lower bound.