Can you share the original source / how you found the document? Thanks!
So I suppose the context was probably that I had just watched The Big Short and was reading up on the topic some more haha.
https://www.hsgac.senate.gov/imo/media/doc/PSI%20REPORT%20-%...
Yep, there's a reference on page 289.
1119 2/2007 “Shorting Home Equity Mezzanine Tranches,” Deutsche Bank Securities Inc.,
and there was an earlier version, from 2005.
1314 See, e.g., 2/2007 presentation, “Shorting Home Equity Mezzanine Tranches,” prepared by Mr. Lippmann, DBSI_PSI_EMAIL01988773-845