WASHINGTON (Reuters) -U.S. producer prices increased solidly in January, offering more evidence inflation was picking up again and strengthening financial market views that the Federal Reserve would not be cutting interest rates before the second half of the year. Economists warned inflation was set to trend even higher as President Donald Trump presses ahead with broad tariffs on imports as well as mass deportations that could cause labor shortages and raise wages and prices of goods. "The report does give pause to rate cut expectations, however, as higher business costs are likely to translate into upward pressure on consumer prices in the months to come," said Kurt Rankin, a senior economist at PNC Financial.