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Who has the world’s No. 1 economy? Not the US

By the most measures, China has passed the US and is pulling away

Gulf News

What’s the most powerful country in the world? There’s a good case to be made that it’s China.

There are many kinds of power — diplomatic, cultural, military and economic. So an easier question to ask is: What’s the world’s largest economy? That’s almost certainly China.

Many might protest when hearing this. After all, the US still produces the most when measured at market exchange rates. But this comparison is misleading, because things cost different amounts in different countries.

Gross domestic product is supposed to measure the amount of real stuff — cars, phones, financial services, back massages, etc. — that a country produces. If the same phone costs $400 (Dh1,468) in the US but only $200 in China, China’s GDP is getting undercounted by 50 per cent when we measure at market exchange rates. In general, less developed countries have lower prices, which means their GDP gets systematically undercounted.

Economists try to correct for this with an adjustment called purchasing power parity, which controls for relative prices. It’s not perfect, since it has to account for things like product quality, which can be hard to measure. But it probably gives a more accurate picture of how much a country really produces. And here, China has already surpassed the US.

If you don’t trust the murky PPP adjustments, a simple alternative is just to look at the price of a Big Mac. The same burger costs 1.8 times more in the US than in China. Adjusting the market-exchange-rate GDP numbers by that ratio would put China even farther ahead.

In some dimensions, China’s lead is even larger. The country’s manufacturing output overtook that of the US almost a decade ago. Its exports are more than a third larger as well. American commentators may be slow to recognise China’s economic supremacy, but the rest of the world is starting to wake up to the fact.

This doesn’t mean China’s population is the world’s richest — far from it. While per-capita numbers are important for the well-being of a nation’s people, they don’t translate into comprehensive national power unless a country also has a large population.

China’s modest per-person income simply means that the country has plenty of room to grow. Whereas developed countries can only get richer by inventing new things or making their economies more efficient, poor countries can cheaply copy foreign technology or imitate foreign organisational practices. That doesn’t always happen, of course — many poor countries find themselves trapped by dysfunctional institutions, lack of human capital or other barriers to development.

But there’s good reason to think that China will overcome at least some of these obstacles. Economists Randall Morck and Bernard Yeung have a new paper comparing the histories of Japan and South Korea — both of which climbed out of poverty to achieve rich-country status — with the recent rise of China. They find that China’s institutions are, broadly speaking, developing along the same path followed by its successful neighbours.

In other words, not only is China already the world’s largest economy, the gap between it and the US can be expected to grow even wider. This continues to be borne out in the growth statistics — though China has slowed in recent years, its economy continues to expand at a rate of more than 6 per cent, while the US is at just over 2 per cent. If that disparity persists, China’s economy will be double that of the US in less than two decades.

So economically, China has surpassed the US, and is on track to zoom far ahead in the near future. But what about military power? Here, it still looks like the US reigns supreme. It spends more money on its military than China, has a larger nuclear arsenal, and — thanks to its recent wars in Afghanistan and Iraq — has a more seasoned fighting force as well.

But that doesn’t mean that the US would win a war, if the two countries fought. A full nuclear exchange, of course, would have no winners. But in a protracted conventional struggle, there’s a good chance that China’s weight of numbers and manufacturing prowess would win out. As an analogy, consider the US and Japan in Second World War. At the beginning of the war, Japan’s aircraft carrier force outnumbered that of the US, and its navy was far more seasoned (due to Japan’s war in China). But when the war began, the US greatly outproduced its opponent.

The US also had a 2-to-1 manpower advantage. When two countries of similar technology levels fight, numbers tend to tell. China has a larger GDP, more manufacturing output and four times the population. And as its recent advances in stealth technology, directed energy weapons, hypersonic missiles and other areas demonstrate, its military technology isn’t that far behind the US. In a drawn-out war, once the mighty Chinese steamroller got moving, it would be unstoppable.

In other words, China is now in a position similar to that of the US at about the turn of the 20th century — a formidable superpower that just hasn’t yet felt any reason to exercise its dominance. Once the US woke up to the need to throw its weight around, no one doubted its primacy.

China may never make the same decision. It may choose to remain restrained on the international stage, with a modest nuclear arsenal and a light footprint in global institutions. If so, its dominance will remain a lurking, looming potentiality instead of a real and present fact of life. But I wouldn’t count on that happening.

— Bloomberg

Noah Smith is a Bloomberg View columnist.

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