he New Jersey bleedout continues. ExxonMobil and Samsung are running for the exits. Joining them this week is candy and confectionery giant Mars Wrigley, which just announced that it is shifting its corporate headquarters from Newark to Chicago. Since the 1940s, Mars Wrigley has been headquartered in Ironbound (AKA Downneck), a rather odd urban offshoot paralleling the Passaic River. It is one of the last livable areas of Newark. Mars Wrigley represents its largest industrial resident. Mars Wrigley is the producer of M&Ms, a legendary candy among one of the most popular in the world, along with Snickers, Milky Way,...