published Feb 8th 2017, 2:53 pm, by Megan McArdle (Bloomberg View) —Well-adjusted children and functional marriages go together. But are the kids thriving because the parents’ marriage works, or does the marriage work for the same reasons that the kids are thriving? This is what social scientists call “selection effect,”

©2015 Bloomberg News NS65YW6K50Y5 (Bloomberg) — Oil extended declines in a bear market amid signs producers from the Middle East to the U.S. will continue adding supplies amid a global glut. Futures slid as much as 1 percent in New York, dropping for a fifth day. Oil exports from southern