The bond market is giving ominous warnings about the global economy

This is not normal. It is called an inverted yield curve, and historically it has been viewed as a sign of a recession in the offing. At a minimum, it indicates that bond investors believe the Federal Reserve will soon need to cut interest rates — in effect, that it overshot with those four rate increases last year.

There is also a soft underbelly to some of the good economic data of late. Orders for capital goods like business equipment fell 0.9% in April, suggesting companies may not be in an expansionary mood. The Institute for Supply Management’s index of activity at manufacturing companies fell sharply in the most recent reading, though it remained in expansion territory.

The financial markets don’t always tell a tidy little story about what is happening, but here’s a theory about reconciling the apparent calm in the economy with the many worrying signs.

The breakdown in trade negotiations with China and the imposition of tariffs on Chinese goods are part of the story, but only a part.

Businesses have weathered escalating tariffs for two years now, and while tariffs can be costly, they do not need to wreck the economy. After all, prices for products fluctuate for all sorts of reasons, and market economies are pretty good at adjusting.

But what has happened in the last few weeks involves the specter of a longer, more painful form of damage. There have been signs that the world’s two largest economies might not simply be experiencing some tensions and trading a few tariffs, but could be heading toward a broader split.

In a sense, economists may have been analyzing the trade war too narrowly, merely by calculating the cost of tariffs and where those costs may show up.

The potential long-lasting consequences are harder to model.

What if U.S. regulators try to cut off Chinese companies’ access to Wall Street and its vast pool of financing, as some China hawks are advocating? What if China cuts off exports of the “rare earths” materials that are crucial to advanced manufacturing in the United States? Will the Trump administration’s ban of the technology giant Huawei be the first step toward a bifurcation of today’s global internet into American and Chinese spheres?

Or it could even be this simple: If there is a slowdown in the Chinese economy that causes its demand for oil and other commodities to fall, American makers of those commodities could face pain over and above that caused by tariffs directly. Falling global commodity prices would pull the world economy even further into its deflationary rut.

That last story is particularly consistent with the swings in markets this month. Because tariffs tend to increase consumer prices, you might expect the escalating trade war to cause investors’ expectations for inflation to rise.

Yet the gap in prices between bonds that are indexed to inflation and those that are not suggests that investors envision annual inflation of 1.6% over the next five years, down from 1.8% at the start of May.

There are further signs of trouble from around the world: threats of conflict with Iran, missile tests in North Korea. European politics is a mess.

It can be a mistake to assume that financial markets are responding to the latest geopolitical headlines. But put it all together, and there’s less of a mystery about why bond investors are in a more pessimistic mood than the recent economic and earnings data might suggest makes sense.

It is premature to assume that a recession or a geopolitical crisis is imminent. U.S.-China relations could enter another period of détente, the Federal Reserve could take a precautionary interest rate cut, and the economy and markets could once again be off to the races.

In other words, we don’t know yet if this is a horror movie or a comedy, but in the months ahead, it seems we’ll find out.