The Stubborn Persistence of Inflation in the Global Economy
Just when inflation appeared to be under control, global markets face renewed concerns about price stability. After the Covid-19 pandemic triggered supply chain disruptions that sent prices soaring in 2021, further compounded by a global energy crisis, central banks responded with the most aggressive monetary tightening in 40 years.
While these efforts initially succeeded in reducing inflation from multi-decade highs, progress has stalled. Now, President Trump's expanding tariff policies threaten to reverse these gains by pushing prices upward once again.
Understanding Inflation
Inflation represents an increase in overall prices across an economy, typically measured monthly or annually. This price growth diminishes purchasing power—a dollar buys fewer goods and services than before.
The consumer price index (CPI) commonly measures inflation by tracking cost changes for typical household expenses including food, housing, and basic services. Independent central banks consider inflation control among their primary responsibilities, using interest rates and monetary supply adjustments to maintain price stability. Many economies, including the United States and European Union, target an ideal inflation rate of 2%—a benchmark first established by New Zealand in 1990.
Tariffs and Their Inflationary Impact
Tariffs—taxes paid by domestic companies on imported goods—directly increase costs for U.S. businesses. While companies could absorb these expenses, they typically pass at least some costs to consumers through higher prices, as witnessed during Trump's first-term trade disputes.
The current tariffs may have broader economic consequences than previous measures since they affect more consumer goods, including computers and stainless steel cookware. Treasury Secretary Scott Bessent has suggested there could be a "one-time price adjustment," but even temporary price increases strain household budgets and risk becoming permanent if inflation expectations rise, potentially triggering wage-price spirals.
Federal Reserve Chair Powell acknowledged in mid-March that inflation "has started to move up now, we think partly in response to tariffs," though he expects any tariff-driven price increases to be transitory.
Global Inflation Outlook
Tariff effects extend beyond U.S. borders. Retaliatory measures from other countries could elevate prices in their domestic economies as American goods become more expensive. The Organisation for Economic Co-operation and Development has already increased its inflation projections for major economies through 2026.
China represents an exception, struggling with deflation amid weakened domestic demand and overproduction. Its cheaper exports may counterbalance inflationary pressures elsewhere by effectively exporting lower prices globally.
The Balancing Act of Price Stability
Neither zero inflation nor deflation represents economic ideals. Deflation signals economic weakness—while falling prices might appear beneficial for consumers, they compress corporate earnings, wages, and demand, risking downward economic spirals.
Similarly, zero inflation isn't optimal. Economic growth naturally generates some inflation as wages increase and demand for goods and services rises. The critical factor is the rate of price increases. When prices outpace wage growth, purchasing power diminishes, harming households and broader economic health.
Workers worldwide continue feeling the impact of recent inflation surges. In approximately two-thirds of OECD member countries, inflation-adjusted wages remain below early 2021 levels. U.S. workers experienced particularly severe effects through mid-2022, when inflation peaked and real wages recorded their steepest decline in about 25 years.
Inflation's Triple Drivers: Supply, Demand, and Expectations
Broad inflationary pressure stems from three sources:
1. **Supply disruptions** directly affect prices, as demonstrated when pandemic restrictions limited product availability.
2. **Demand pressure** occurs when governments increase money supply through greater spending or reduced taxation, or when central banks lower interest rates—policies widely implemented during the pandemic. When demand exceeds production capacity, inflation typically results.
3. **Expectations** can make inflation self-reinforcing. When businesses anticipate higher inflation, they raise prices preemptively. Workers then demand higher wages to offset rising costs, compelling companies to further increase prices—potentially creating wage-price spirals disconnected from underlying economic conditions, similar to those experienced in 1970s America.
Central Bank Responses
Central banks primarily control inflation by adjusting inter-bank lending rates. Higher rates increase borrowing costs throughout the economy, reducing consumer and business spending. However, interest rate manipulation represents an imprecise instrument that can inadvertently suppress economic growth or trigger recessions by excessively restricting spending.
The Federal Reserve raised U.S. interest rates to their highest level in over two decades to combat post-pandemic inflation, successfully reducing price growth from above 9% to approximately 3%. As inflation approached the 2% target and growth concerns emerged, the Fed began easing rates, as did other central banks, though this process has been inconsistent globally. According to the World Bank, about one-third of economies will likely maintain inflation above their targets through late 2025.
Persistent Inflation Factors
Many inflation drivers from the post-pandemic period persist. While supply chains have largely recovered—Chinese factories reopened, companies diversified sourcing, and energy prices stabilized after Russia's Ukraine invasion—shortages continue in certain sectors, including medical devices and transportation labor. Companies facing these pressures while seeking to maintain profits continue raising prices, albeit more gradually.
Climate change and animal diseases have also contributed to global food price increases. Japan's extreme heat devastated rice production, while the worst bird flu outbreak in U.S. history has killed millions of hens and driven egg prices to record highs this year.
The Specter of Stagflation
Stagflation—the combination of economic stagnation and persistent inflation—presents a particularly challenging scenario. During typical recessions, central banks can stimulate growth by cutting interest rates or implementing quantitative easing. During inflation, they can raise rates and reverse quantitative easing. However, stagflation creates a policy dilemma: rate cuts might accelerate inflation, while rate increases could further weaken growth.
The world last experienced stagflation in the 1970s, when Middle Eastern petroleum producers dramatically reduced oil exports, sending prices soaring and hindering economic growth. Economists and investors increasingly worry that conditions are aligning for potential U.S. stagflation, with persistent price increases occurring alongside cooling labor markets and slowing economic activity.