Why America's Edge Will Endure which rejects that the U.S. is in decline relative to China or that the hegemonic burdens the U.S. bears to sustain a globalized system contributes to its decline. Beckley argues the U.S. power is durable, and "unipolarity" and globalization are the main reasons. He says, "The United States derives competitive advantages from its preponderant position, and globalization allows it to exploit these advantages, attracting economic activity and manipulating the international system to its benefit."[41]