I returned last weekend from a monthlong trip to East Asia and Europe. I discovered three things: First, the Europeans were obsessed with Germany and concerned about Russia. Second, the Asians were obsessed with China and concerned about Japan. Third, visiting seven countries from the Pacific to the Atlantic in 29 days brings you to a unique state of consciousness, in which the only color is gray and knowing the number of your hotel room in your current city, as opposed to the one two cities ago, is an achievement.

The world is not getting smaller. There is no direct flight from the United States to Singapore, and it took me 27 hours of elapsed travel to get there. There is a direct flight from Munich to Seoul, but since I started in Paris, that trip also took about 17 hours. Given how long Magellan took to circumnavigate the world, and the fact that he was killed in the Philippines, I have no basis for complaint. But the fact is that the speed of global travel has plateaued, as has the global economic system. There is a general sense of danger in Europe and Asia. There is no common understanding on what that danger is.

I was in Seoul last week when the news of a possible wave of European crises began to spread, and indications emerged that Germany might be shifting its view on austerity. It was striking how little this seemed to concern senior officials and business leaders. I was in the Czech Republic when the demonstrations broke out in Hong Kong. The Czechs saw this as a distant event on which they had opinions but which was unlikely to affect them regardless of the outcome.

There has been much talk of globalization and the interdependence that has flowed from it. There is clearly much truth in arguing that what happens in one part of the world affects the rest. But that simply was not evident. The eastern and western ends of the Eurasian landmass seem to view each other as if through the wrong side of a telescope. What is near is important. What is distant is someone else's problem far away.

Germany and China as Economic Centers

There is symmetry in this view. Europe cares about Germany and Asia about China. In some fundamental ways these countries have a substantial amount in common. China is the world's second-largest economy. Germany is the world's fourth-largest exporter. Both countries are at the center of regional trade blocs -- Germany's formal, China's informal. Both trade on a global basis, but both also have a special and mutual dependency on their regions. China and Germany both depend on their exports. Germany's exports were equivalent to 51 percent of its gross domestic product, or about $1.7 trillion, in 2013, according to the World Bank. China's exports equaled 23.8 percent of a larger GDP, or about $9.4 trillion.

The two countries at the center of their respective regional systems have both been extremely efficient exporters. The United States, by comparison, exports only 14 percent of its GDP. But it is precisely this ability to export that makes both Germany and China vulnerable. Both have created production systems that outstrip their capacity to consume. For Germany, increasing consumption can be only marginally effective because it is already consuming at near capacity. For China, there is more demand, but much of it is among the roughly billion people who lack the purchasing power to the buy the goods China produces for the regional and global market. China's society lives on a steep cliff. On top of the cliff is a minority who can purchase goods. In the deep valley are those who cannot -- and also cannot readily climb the cliff. Thus, like Germany, China's effective demand cannot absorb its exports.

Therefore, economic viability for both Germany and China depends largely on maintaining exports. No matter how much they import, their exports maintain domestic social order by providing a significant source of jobs right away, rather than in some future scenario involving the rebalancing of their work forces. For Germany, which has memories of massive social dislocation in the 1920s, maintaining full employment cuts to the heart of the country's social order. For China, whose Communist Party was shaped by the rising up of the unemployed in Shanghai in 1927, maintaining full employment is a bulwark in defense of the government. Both countries look at unemployment not only in terms of economics, but also in terms of social stability and governmental survival. Therefore, exports are not simply a number, but the foundation of each country.

An Economic Model's Shortcomings

The problem with an export-based economy is that the exporter is the hostage of its customers. Germany's and China's well-being depend not only on how they manage their economies, but on how their customers manage their own economies. If the customer's economy fails, the customer cannot buy. It doesn't matter whether the problem is a policy failure or a cyclical downturn -- the exporter will pay a price. Both Germany and China exist in this precarious position.