A Bernie Sanders Win in Iowa Could Ripple Through Markets

(Bloomberg) -- Unlike the cookies used to lure support at the Iowa caucuses, financial-market expectations for what could be a pivotal moment in the race to the White House are only half-baked.The state is the first to choose its preference for a nominee. So the vote could push the dollar down and stir volatility in bonds, strategists say, if the latest polls are right that votes will tip heavily in favor of Senator Bernie Sanders, a self-described democratic socialist.Yet his prospects beyond t