The U.S. will start easing its penalties, imposed over the showdown in Ukraine in 2014, during the next 12 months, according to 55 percent of respondents in a Bloomberg survey, up from 10 percent in an October poll. Without the restrictions, Russia’s economic growth would get a boost equivalent to 0.2 percentage point of gross domestic product next year and 0.5 percentage point in 2018, according to the median estimates in the poll.  Donald Trump’s surprise election in November is feeding expectations of a sea change in U.S. policy even after the European Union this week rolled over its economic penalties against Russia for an additional six months.