China's top leaders surprised markets by pledging even more support for the economy, sparking hopes that policymakers are readying the sort of fiscal stimulus analysts say is key to the country's recovery. The Politburo, China's highest decision-making body, on Thursday said it will extend additional fiscal and monetary measures to boost the economy, according to state media Xinhua. That comes days after the central bank unveiled a raft of aggressive easing moves, underscoring a rising sense of urgency among policymakers to revive the world's second-largest economy. Senior leadership at the Thursday meeting, including President Xi Jinping, vowed to reach the country's annual economic goals, urging officials to implement existing policies more effectively and roll out new ones.