The day that China assumes the mantle of world’s largest economy will invite both envy and trepidation, and global perceptions could shift rapidly. The approach of this psychological threshold has already led some quarters of the global cognoscenti to declare the irreversible decline of the American idea as the enduring viability of the China model supplants it. Amid the anticipated “declinist” commentary in the United States and elsewhere, however, too few will pause to ask “so what?” Should China’s continued rise really inspire such alternating anxiety and cheerleading? Yes, China is almost guaranteed to become the world’s leading economic power, but this achievement will paradoxically say less about China’s growing strength and influence than conventional wisdom assumes.

That China will eclipse the United States in absolute GDP terms shouldn’t be particularly surprising—it is, after all, home to four times the population of the United States. But perhaps the speed with which China has caught up with the rest of the world, a pace that not even China’s own leaders anticipated, will be surprising to many. Yet the speed of growth will no longer be the dominant preoccupation of the country. The perennial “bulls and bears” debate on China’s prospects, exclusively focused on the state’s struggle to maintain rapid growth, overlooks a more fundamental truth.

Either a continuation or an interruption of growth is unlikely to alter the country’s sociopolitical core after 30 years of breakneck development. China has, in fact, already weathered several jarring economic cycles since its transition to a market economy, though the country’s statistical system obscured the direct effects at the time. If the country were on the verge of economic and political collapse the moment real GDP growth dipped under 8 percent, it would have already collapsed several times by now. In fact, the Chinese economy is more resilient to the business cycle than is typically acknowledged.

Yet in spite of this, the country’s economic and political rise will constrain as much as empower it over the next decade. It will be an era in which the country’s ability to sustain economic growth becomes less of a concern. What instead will define China is also what has always defined it: scarcity.

The crucial and intersecting challenges of scarcities, both emerging and intensifying, will consume China’s custodians over the next decade. Scarcity is the keen lens through which the economic, social, and political constraints that accompany China’s rise can be seen most clearly. Economic dimensions of scarcity are perhaps the most obvious and are subject to frequent discussion. China’s supplies of natural resources and labor, the critical inputs that have sustained its stellar growth, are increasingly stressed. Resource scarcity is about to force difficult changes in China’s growth model, whether the country is prepared or not. Food, too, faces renewed supply constraints as burgeoning Chinese consumption adds a new set of pressures on domestic production. But as previous decades have witnessed, what happens in China can rarely be contained within its borders. These challenges of scarcity will have far-reaching implications for global supplies, global prices, and global politics.