Non-agency investors will not support new mortgage-backed securities until lenders and issuers establish stringent standards for originations and securitization, according to industry participants. “You’re going to need something to convince people – at least in the top tier – that their credit risk is pretty low,” David Lukach, a partner and head of the U.S. structured finance group at PricewaterhouseCoopers, said at a discussion hosted by the Securities Industry and Financial Markets Association last week. ...