When countries grow at the same exponential rate, they maintain their relative sizes. But after we develop AGI, there may be a period of superexponential growth, with growth becoming faster and faster over time. If this superexponential growth lasts for long enough, the leader could pull further and further ahead of the others, eventually producing >99% of global output, and outgrowing the rest of the world combined. This post gives a basic economic analysis of this dynamic and argues that the leading country in AI development could outgrow the world, but only if it was trying hard to do so.