Best post to understand this indicator. Once the curve inverts market has 6 to 18 months before recession begins.

Last cycle the curve went from invertsion to steeping in June 2007 and Dec 2007 NBER declared recession has began. By Sept 2008 market crash was in motion to end in March 2009.

A Remarkably Accurate Warning Indicator For Economic And Market Peril

http://news.goldseek.com/GoldSeek/1531148700.php