by Mark Bern, CFA If you watch financial network TV or read what financial gurus have to say on the Internet you can expect to hear a lot about the yield curve in the coming months. The fact is it will have everyone worried about the possibility of another recession. Why? In every instance when the yield curve inverted in modern history (since the Great Depression) when the yield curve inverted it was followed by a recession in the U.S. that began sometime between six and 24 months after the inversion occurred. What is the yield curve? It is the spread (or difference) between the 10-year Treasury note and the 2-year Treasury note yields (market interest rates). When the 2-year note yield is higher than the 10-year note yield the curve is said to be inverted. The reasoning is simple: investors should expect to be paid a higher yield for holding a security that has a longer term to duration because so much can happen over the longer tim...