How China’s currency policies will change the world

The recent fluctuations in China’s currency typify the best and worst of a globalized world, where developments in one place can instantly change the political and financial calculations of governments in others. For most of human history, the communities, cultures and economies of the world existed independently of one another, separated as they were by vast distances and difficult terrain. It would, for instance, take months or even years for news of China to reach Europe across the great Silk Road trading route during the height of its use some 1,000 years ago. Even then, the communities along that route could hardly be considered entirely coherent.

But that is clearly no longer the case. And now, as China continues to adjust the yuan, markets throughout the world will react accordingly, even as they react differently.