Record global sales of junk bonds -
New York Fed weighs fresh securities auction -
ECB tonic buys time for eurozone -
Institutions warm to leveraged and inverse funds -
Risky debt use on repo market hits 2008 levels -
Caesars plans IPO to allow investors to sell -
Africa ? a resilient frontier amid euro turmoil -
Madrid?s borrowing costs fall sharply -
Record-breaking start to 2012 for Asian bonds -
Highly rated US industrial bonds set records -
Petrobras sells $7bn of corporate bonds -
US Treasury urged to go below zero -