Key Takeaways
- Geopolitical conflict in the Middle East is driving renewed inflationary pressures globally
- Rising energy prices are complicating central bank efforts to return inflation to target
- The Federal Reserve and other central banks are likely to keep interest rates higher for longer
- Higher rates create both risks and opportunities across equities, bonds, commodities, and currencies
- Investors may benefit from diversification and active risk management in a stagflationary environment
- Commodity-linked assets and inflation-resilient investments may remain supported
Higher for Longer
The resurgence of geopolitical conflict in the Middle East and the resulting spike in global energy prices have once again complicated the battle against inflation for major central banks. What initially appeared to be a manageable disinflation trend has evolved into a renewed inflation challenge, forcing policymakers to reconsider the pace and direction of monetary policy while investors reassess portfolio risks and opportunities.
Read Strategy Steadies Investors During Geopolitical Uncertainty.
Inflation Pressures Are Reaccelerating
Recent economic data underscores the growing impact of war-driven inflation. Global headline inflation, excluding China and Turkey, is estimated to have risen to roughly 3.5% year over year in April 2026—about one percentage point above pre-conflict levels. While higher fuel and energy costs remain the primary drivers, inflation is increasingly spreading into broader consumer and services categories, suggesting that inflationary pressures are becoming more entrenched and increasing the risk that interest rates remain higher for longer.
The United States: A Clear Example of Inflation Persistence
The United States offers a clear illustration of these dynamics. U.S. consumer price inflation rose to 3.8% year over year in April, marking its highest reading in three years. Core inflation also exceeded expectations, suggesting that price increases are no longer limited to volatile components. Producer prices painted an equally troubling picture: April’s Producer Price Index rose 6% year over year, the steepest increase since December 2022, and well above market expectation for a 4.9% rise. Energy prices jumped nearly 8% during the month, while transportation and warehousing costs rose sharply, highlighting how supply-chain pressures and higher oil prices are permeating the economy.
Central banks are particularly concerned that inflation is no longer confined to energy-related categories. Measures of so-called “supercore” inflation—services excluding housing—have shown renewed momentum, indicating second-round effects as companies pass higher input costs on to consumers. This raises the risk that inflation expectations become entrenched, making price stability far more difficult to restore without tighter financial conditions.
Explore the post Investment Strategies during a High-Inflation Environment.
Why Central Banks Are Turning More Hawkish
In response, central banks across both developed and emerging markets have adopted a more hawkish stance. The Bank of Japan, historically among the most accommodative institutions, has signaled openness to further interest-rate hikes amid concerns about sustained inflation and energy-driven spillovers. Emerging market central banks are acting even more decisively. Countries such as the Philippines and Turkey have already raised rates, while others, including Indonesia, are widely expected to tighten policy to stem currency weakness and defend financial stability.
The U.S. Federal Reserve faces one of the most delicate policy trade-offs. While economic growth in the first quarter of 2026 underperformed expectations, persistent inflation has limited the Fed’s ability to pivot toward meaningful rate cuts. Policymakers increasingly acknowledge that elevated energy prices may keep inflation higher for longer, even if growth continues to moderate. As a result, the Fed appears committed to remaining on hold, with the possibility of renewed tightening if inflation worsens.
The Return of Stagflation Risk
Ultimately, war-driven inflation has revived stagflationary risks—slower growth paired with stubborn inflation. For central banks, the challenge lies in containing prices without provoking economic contraction. For investors, the environment reinforces the value of diversification, active risk management, and exposure to assets resilient to prolonged geopolitical and inflationary uncertainty.
The Bottom Line
The expectation that central banks would soon begin aggressively cutting interest rates has become increasingly uncertain. Rising energy prices, persistent inflation, and geopolitical instability suggest that monetary policy may remain restrictive for longer than markets initially anticipated.
For investors, this environment highlights the importance of maintaining disciplined portfolio construction, focusing on quality assets, and remaining diversified across sectors and geographies. While uncertainty remains elevated, thoughtful positioning can help investors navigate a world where interest rates may stay higher for longer.
From the Sterling Team
Eugene Stanley is vice president, fixed income & foreign exchange, at Sterling Asset Management.
Sterling provides financial advice and instruments in U.S. dollars and other hard currencies to the corporate, individual, and institutional investor.
Visit our website at https://sterling.com.jm/
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FAQs
What does “higher for longer” mean for interest rates?
“Higher for longer” refers to a period where central banks keep interest rates elevated for an extended time to combat persistent inflation, even if economic growth begins to slow.
Why are central banks keeping interest rates high?
Central banks use higher interest rates to reduce inflation by slowing borrowing and spending. When inflation remains above target, policymakers may delay rate cuts to prevent price pressures from becoming entrenched.
How do higher interest rates affect investments?
Higher interest rates can create volatility across equities and bonds while increasing the appeal of cash, short-term fixed income, and income-generating investments. Different asset classes may perform differently depending on the economic environment.
What is stagflation and why are investors concerned about it?
Stagflation occurs when economic growth slows while inflation remains elevated. This combination can be challenging because traditional policy tools used to support growth may risk worsening inflation.