Argentina's economic activity likely plunged 5.9% year-on-year in February, a Reuters poll of market analysts showed on Monday, which would make a fourth straight monthly slide amid tough austerity measures under new libertarian President Javier Milei. The expected slide underscores the impact of Milei's cost-cutting on the real economy, even as it helps to boost the government's fiscal position after years of deficits and to rebuild depleted central bank reserves. According to the mid-April poll, the 11 analysts estimated declines for the month ranging from 4.1% to a maximum 7.1% year-on-year, with stronger farming and mining activity offset by a sharp slide in consumption, manufacturing and construction sectors.