Zach M. just bought two unrated speculative bonds at $1,000 each of a venture to build a 1970's era Disco Dancing Hall on Downer Ave. tentatively called Staying Alive featuring a huge sparkling 6-foot disco ball. Tentative plans is a Grand Opening in the fall of 2021. It will feature dances like The Bump, The Hustle, and the always popular YMCA. (Sorry, Zach, I went a little bonzo on this question.) The rate of return that Zach's bonds and the other bond lenders require is referred to as the: pure play subjective cost cost of debt weighted average cost of capital