A move of the yield curve is bull steepening when yields fall and the curve steepens, the short end falling more, and bear flattening when yields rise and the curve flattens, the short end rising more. Bull flattening and bear steepening are the other two combinations.
Quantitative Finance · Glosarium
Apa itu Bull steepening, bear flattening?
Dikenal juga sebagai: bull steepening · bear flattening