Surging Oil Prices Drive Global Inflation Rebound, Energy Shock Permeates Multiple Economies

Overview

This report is Citi’s Global Economics team’s May inflation monitor. It tracks global headline inflation, core inflation, producer prices, and country-level inflation dynamics, finding that global headline inflation rose to nearly 3% in April—the highest level since the onset of the conflict. This inflation rebound is primarily driven by rising energy prices, with energy inflation reaching 9.4% year-over-year, transmitting through crude oil, imported goods, and ultimately to final consumer prices. In contrast, global core inflation remains relatively moderate, staying at 2.3%. Citi has accordingly revised upward its 2026 global inflation forecasts, with the most significant adjustments seen in Asian emerging economies (Philippines, Thailand, Vietnam).

Core views

The energy shock has become the central driver of current inflationary pressures. In April, global energy prices rose 9.4% year-over-year, while food prices added 2.1% to headline inflation. Unlike the volatility in energy, core goods inflation has clearly cooled: global core goods inflation was just 1.4% year-over-year in April, and as low as 1.1% in the U.S., reflecting easing supply chain pressures and weakening demand. Services inflation, however, remains resilient, with global services prices up 2.6% year-over-year; excluding China, emerging markets recorded services inflation as high as 4.5%, reflecting persistent labor costs and demand strength. Regionally, the divergence between developed and emerging markets has widened. Developed markets (DM) posted headline inflation of 3.3% and core inflation of 2.4% in April—both significantly below their peaks. Emerging markets (excluding China) recorded headline inflation of 3.5%, higher than in developed markets, with greater pressure from services and food inflation. China’s headline inflation remains the lowest globally at just 1.2%, and core inflation also stays subdued, reflecting weak domestic demand; however, PPI remains positive at 1.4% year-over-year, indicating some cost support on the production side. U.S. import prices reveal energy and terms-of-trade pressures. Of the 4.2% year-over-year increase in overall U.S. import prices in April, the figure excluding food and fuel was 3.3%, implying that the energy shock accounted for nearly 1 percentage point. Among major categories—capital goods, automotive parts, and consumer goods (excluding autos)—capital goods showed the highest index (110.0), followed by automotive parts (106.9), and consumer goods (102.8), highlighting ongoing pressure on intermediate supply chain inputs.

Analysis framework

Citi employs a multi-dimensional inflation tracking framework, analyzing inflation across four major categories: energy, food, core goods, and services. By comparing long-term trends (since 2015) with recent developments (since 2021), the report highlights the asymmetric nature of the current inflation shock: after peaking in mid-2022, goods inflation has sharply declined, while services and energy inflation remain resilient. The report also uses a structured approach by country and index (headline CPI, core CPI, PPI), employing scatter plots to illustrate each economy’s position in terms of inflation levels and momentum, helping identify high-risk versus moderate-inflation regions. Detailed classification of import price indices further illustrates how the U.S., as a global demand hub, transmits commodity price changes throughout the global economy.

Methodology notes

• Macroeconomic frameworkSpreads and Asset Quality

  Transmission mechanism of rising energy costs to overall prices: higher crude oil prices → higher import prices → higher consumer-end inflation, illustrating a cost-push inflation transmission channel.

  By tracking the co-movement of PPI, import prices, and CPI, the report demonstrates how rising commodity prices—especially energy—increase production costs for firms, which are then passed down the chain to consumers. Understanding the speed and magnitude of this cost transmission helps assess whether inflation will quickly subside or remain elevated.

• Sector/Industry Analysis FrameworkSupply-demand framework

  Interaction between supply-side shocks (geopolitical conflict disrupting energy supply) and demand-side resilience (elevated services inflation indicating strong demand) shapes the inflation trajectory.

  The current inflation rebound is uneven: energy (sensitive to supply shocks) and food inflation remain high, while core goods inflation (demand-driven) has clearly cooled. This indicates a shift in inflation drivers—from demand-pull to supply-constrained—and implies that policy responses should be adjusted accordingly.

• Cycle and Sentiment FrameworkTurning Point Analysis

  Mid-2022 marked the inflation peak; since then, goods inflation has fallen rapidly, but turning points for services and energy inflation have lagged, signaling an asynchronous global cooldown phase.

  By observing differences in peak timing and decline speeds across inflation categories, one can assess varying sectoral stress within the economic cycle. Goods inflation has already peaked, while services and energy remain elevated, suggesting that the lagged effects of monetary tightening are still unfolding.

• Macroeconomic frameworkPhillips curve

  Trade-off between core inflation and unemployment/output gap: global core inflation is moderate (2.3%), yet services inflation remains high (2.6%), reflecting continued tightness in labor markets.

  The lack of significant decline in core inflation—particularly in services—suggests labor markets and demand have not yet sufficiently loosened. This constrains central banks’ ability to cut rates, as wage-driven inflation typically requires a longer adjustment period in the real economy.

Key data

• Global Headline Inflation (April)2.9%Year-over-year; up ~1 percentage point from early 2026; DM: 3.3%, EM: 3.5%, China: 1.2%
• Global Core Inflation (April)2.3%Year-over-year; stable; DM: 2.4%, EM: 3.4%
• Global Energy Inflation (April)9.4%Year-over-year; primary driver of the rise in headline inflation
• Global Food Inflation (April)2.1%Year-over-year; significantly lower than 2022 peaks but still positive
• Global Core Goods Inflation (April)1.4%Year-over-year; indicating clear relief in supply chain and demand pressures
• Global Services Inflation (April)2.6%Year-over-year; DM: 3.0%, EM (ex-China): 4.5%, reflecting labor cost resilience
• Global PPI (March)2.8%Year-over-year; DM: 3.6%, EM: 1.4%
• U.S. Overall Import Prices (April)4.2%Year-over-year; 3.3% excluding food and fuel
• 2026 Global Inflation Forecast RevisionMedian revised upward by ~0.5 percentage pointsU.S. and Eurozone each revised up by ~0.4 percentage points; largest increases in Asian EMs (Philippines, Thailand, Vietnam)

Impact & implications

The report’s analysis carries multi-dimensional implications for policy and markets. First, sustained higher energy prices would delay the return of global inflation to target levels, forcing central banks to maintain higher interest rates for longer and dampening growth prospects. Second, the coexistence of moderate core inflation and resilient services inflation implies that future inflation paths depend critically on labor market adjustments and energy supply stability. Third, growing divergence means a one-size-fits-all global policy is ineffective: developed markets may cut rates sooner, while emerging markets face greater pressure. Finally, elevated U.S. import prices and their component dispersion suggest deteriorating terms of trade could exacerbate consumer inflation in the U.S. while imposing persistent cost pressures on global supply chains.

Risks

• Escalation of geopolitical conflicts leading to further energy supply disruptions or renewed price spikes
• Extreme weather triggering another surge in food prices and pushing up food inflation
• Persistent wage stickiness in the services sector making it difficult to reduce core inflation
• A reversal in USD appreciation expectations potentially causing import price rebounds
• Weak Chinese demand lowering the baseline for global commodity prices, though energy remains vulnerable to geopolitical shocks

What to watch

• Trends in energy and food prices in coming months, particularly whether oil prices stabilize at current levels
• Central banks’ reassessments of inflation outlooks and pace of policy adjustments
• Alignment between services inflation and labor market data to gauge wage-price spiral risks
• Divergence between capital goods and consumer goods in U.S. import prices, reflecting global demand resilience
• Whether inflation pressures in emerging markets ease under high-rate regimes or trigger growth risks