TOKYO - Japan's core consumer inflation likely re-accelerated in April, a Reuters poll of 19 economists showed, as a flurry of retail price hikes offset the effect of the government's energy subsidies. Persistent inflation, coupled with three-decade-high wage hikes, have emboldened market speculation that the Bank of Japan is preparing for a policy shift, though Governor Kazuo Ueda has pledged to maintain current easing since he assumed office last month. Japan's core consumer price index (CPI), which excludes fresh food but includes energy items, likely grew 3.4 percent in April from a year earlier, the poll showed. The pace would step up from 3.1 percent seen in both March and Fe...Keep on reading: Japan core CPI likely re-accelerated in April despite energy subsidies- Reuters poll