The Policy Dilemma in the Era of Sticky Inflation: The Structural Shift of the US Economy

Inflation Is No Longer Just a Cyclical Problem

In July, the U.S. Personal Consumption Expenditures (PCE) price index rose 3.7% year over year, unchanged from June, marking the 65th consecutive month above the Federal Reserve's 2% target. Markets had expected inflation to fall to 3.6%, but reality once again shattered this linear-regression fantasy. This is not a simple data fluctuation but a sign of a deeper change: inflation is evolving from a cyclical phenomenon into structural stickiness.

Since February 2021, U.S. inflation has never returned to the target range. From the initial supply-chain bottlenecks, to demand overheating from fiscal stimulus, to the successive layering of tariffs and geopolitical conflicts, the drivers of inflation have fundamentally shifted. July's data shows that even as the energy price shock from the Iran war fades, inflation still shows insufficient downward momentum.

The Combined Effect of Geopolitical Conflict and Trade Barriers

In February 2026, President Trump and Israel launched airstrikes against Iran, disrupting about one-fifth of global oil supply. PCE inflation quickly climbed to 4.1% in May, a three-year high. Although half a year has passed, the intensity of the conflict has subsided, and oil prices along with the broad inflation wave they triggered have fallen from their late-spring peaks, one key fact cannot be ignored: the global energy system can no longer repair itself as quickly as it once did.

Meanwhile, trade policy has become another persistent source of supply shocks. The wave of import tariffs Trump has unleashed since returning to the White House has pushed up prices across a range of goods. On the last Friday of August, negotiations between the United States and Canada, its second-largest trading partner, broke down, and tariffs on $20 billion in Canadian goods are about to take effect. Both sides have already announced more retaliation measures. The reinforcement of trade barriers is accelerating the collapse of the old "low-cost globalization" model.

The Fed's Dilemma: Between Credibility and Growth

In July, the Fed decided to keep interest rates in the 3.50%-3.75% range, holding steady for eight consecutive months. Most Federal Open Market Committee members believe more data is needed, but a minority of officials are increasingly anxious: since inflation has exceeded target since February 2021, if they don't tighten further, the goal may never be achieved.

However, second-quarter GDP growth was only 1.5%, and it was not revised upward. Weak growth coexisting with sticky inflation leaves the Fed in a classic stagflationary dilemma. The last similar situation occurred in the 1980s, when the Fed under Volcker reshaped its credibility at the cost of aggressive rate hikes. But times are different now: federal debt is far larger than it was then, and every basis-point rate increase means billions more in Treasury interest payments. Policy space has narrowed considerably.More importantly, the drivers of inflation have changed. Over the past four decades, globalization kept commodity prices low, and the Fed was able to counter inflation caused by overheated demand through interest rate policy. But today, the supply shocks brought by tariffs, geopolitical conflicts, and supply chain restructuring are not easily resolved by rate hikes. The Fed finds itself in a nearly untenable position between "being unable to solve supply-side problems" and "having to manage inflation expectations."

The Global Order Shift Behind Structural Stickiness

This is not a phenomenon unique to the United States. The global trend of deglobalization is reshaping the underlying logic of inflation. Countries are no longer pursuing efficiency alone, but are placing security above cost. The localization of industrial chains, friend-shoring, and the expansion of strategic reserves are all pushing up long-term production costs. Geopolitics is no longer a background variable affecting the economy; it has directly become part of price formation.

International markets have already perceived this keenly. Long-term Treasury yields remain elevated after inflation data releases, while the U.S. dollar is under pressure because the Fed may continue to wait and see. Capital flows are being readjusted: manufacturing reshoring policies are increasing the appeal of dollar assets, but the expansion of fiscal deficits is undermining their long-term credibility. This contradiction will dominate global financial markets for some time to come.

The Future: Inflation Stickiness May Become the New Normal

Looking ahead, there are few factors in the short term that can quickly bring inflation back to 2%. Oil prices have fallen, but if no final solution to geopolitical conflicts is reached, supply risks will persist. In terms of trade frictions, the breakdown of the U.S.-Canada negotiations is just one microcosm; more trade disputes are brewing. Even if the Iran war cools down, tariffs and other non-tariff barriers will continue to support price levels.

For businesses and policymakers alike, adapting to inflation stickiness may be the theme of the next decade. Pricing power, inventory management, supply chain redundancy, and wage negotiations will all be benchmarked to higher inflation expectations. The Fed's credibility will face repeated tests, and each data deviation from target will deepen market doubts about whether the 2% target is still realistic.

The U.S. economy is not on the verge of recession, but it is far from a strong recovery. GDP growth of 1.5% is barely sufficient to sustain growth, far from enough to offset the real income losses brought by inflation. The room for policy choices is narrowing. Whether the Fed ultimately decides to raise rates or stay on hold, it signals that a more difficult era is coming.

The true picture of inflation has never been just a string of numbers; it is a projection of the evolution of an entire economic order. As globalization recedes, geopolitical conflicts become normalized, and trade barriers are reborn, inflation stickiness is no longer a short-term consequence of policy mistakes but a long-term feature of the transformation of the world system. Understanding this may be more important than predicting the next interest rate decision.