Turkey's economy will grow 3% this year and next, lower than the government's recently updated forecasts, a Reuters poll of economists showed on Monday, pointing to a much deeper slowdown as authorities seek to douse rampant inflation. Poll respondents also unanimously agreed the central bank would hold its key interest rate at 50% on Thursday, but eventually ease policy by 250 basis points by year-end. Ankara launched its tightening drive in mid-2023 to reverse a years-long low-rates strategy championed by President Tayyip Erdogan to boost economic growth.