In today's cost-benefit analysis of fighting something in court vs. damaging your relationship with your consumers, relationships win.

FORBES: You Are How You Eat

After recent encounters between the sides much of the post-match analysis focused on the frosty relationship between Ferguson and former Liverpool boss Rafael Benitez.

BBC: Sir Alex Ferguson warns Man Utd ahead of Liverpool game

Slaughter has found a statistically significant relationship between declining unionization and increasing foreign investment across industries in the U.S. Firm-level analysis by Bruce Fallick of the Federal Reserve Board and our colleague Kevin Hassett also finds a negative relationship between unionization and investment.

FORBES: How To Lure Foreign Investment To The U.S.