This essay examines the effectiveness of fiscal and monetary policies in achieving economic stability, particularly in the context of secular stagnation. It begins by contrasting the traditional advantages of monetary policy, such as political neutrality and avoidance of government debt burden, with fiscal policy. The essay then argues that in an environment of secular stagnation, where economic growth is negligible, fiscal policy becomes a more potent tool. It explains how government borrowing and investment can absorb excess savings and stimulate demand. The essay highlights the current global threat of secular stagnation, which can trigger a vicious cycle of slow economic growth in both industrialized and emerging market economies. The conclusion reinforces the idea that while monetary policy is generally preferred, fiscal policy is more effective during secular stagnation and that the world economy is facing an increasing risk of it.