New paper. (He quotes me early in the paper. That kinda tickled me. :-) https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4763372 I'm in contact with the author. Just thought some of you might want to be aware of it. -- r b-j . _ . _ . _ . _ rbj at audioimagination.com "Imagination is more important than knowledge." . . .