Iran conflict and global food security: Why the most vulnerable bear the brunt

Iran Conflict and Global Food Security: Why the Most Vulnerable Bear the Brunt

How Energy Shocks Worsen Global Food Distribution Inequality

When energy supplies are disrupted in the Persian Gulf, news coverage tends to focus on oil prices, transportation costs, and production profits in developed countries. However, economists at Purdue University point out that the more critical issue is the distributional effect of such a shock across the globe. For consumers and farmers in high-income countries, the cost increases stemming from the Iran conflict, while significant, can be cushioned by high incomes, diversified supply chains, strong currencies, and institutional safeguards. For low-income countries, the same shock escalates into a severe food security crisis through multiple overlapping channels.

Transportation Costs: A Magnifier of Food Prices in Low-Income Countries

Research finds that the Iran conflict is essentially an oil supply shock rather than a demand shock. Unlike demand-driven oil price increases, supply shocks have a far greater impact on the food systems of low-income countries than on those of high-income countries. In low- and middle-income countries, transportation costs account for a significantly larger share of final food prices than in high-income countries. Food transport in these countries often involves long routes through weak infrastructure, missing cold chains, and high intermediary costs. As a result, fuel price increases can substantially widen the price gap from farm to consumer, with deterioration far exceeding that seen in the food systems of high-income countries, where logistics are more efficient.

Food Expenditure Share: Economic Vulnerability of Low-Income Households

From the consumer side, households in low-income countries spend about 52% of their income on food. When food prices rise by 10%, it is equivalent to a 5% decline in the real income of these households. By contrast, households in high-income countries need only spend a smaller portion of their income on food, and thus bear a relatively limited burden. This structural difference means that the same fluctuations in international market prices hit the world's poorest people the hardest.

Thin Global Food Markets and the Dual Pressure of the Dollar

The global food market is "thin"—only about 25% of wheat, 14% of corn, and 10% of rice production enters international trade. This means that even slight fluctuations in supply and demand can trigger disproportionately sharp price swings. For developing countries that rely on imports, such price volatility is especially deadly. Moreover, geopolitical crises typically push the U.S. dollar higher, while dollar-denominated food prices also rise at the same time, further amplifying the actual cost paid in local currencies by low-income importing countries.

The Chain Reaction of Export Restrictions

Historically, major food-producing countries have often resorted to export restrictions to protect their domestic markets during price shocks, but this self-protective measure further reduces the volume of tradable goods on the global market and accelerates price increases. For the countries most dependent on imports, such chain reactions often bring the most severe consequences.

Humanitarian Channels Under Strain

The World Food Programme warns that at least 318 million people at risk of hunger will face even harsher conditions due to rising fuel and commodity prices. The same budget will be able to deliver less food aid as costs rise, directly squeezing humanitarian response capacity.## Industry Impact

The impact of this Iran conflict on global agricultural supply chains deserves in-depth examination. First, the rising share of energy in agricultural production costs will be passed through to global food prices, creating imported inflation pressure on economies that depend on food imports. Second, supply chain disruptions may prompt some countries to accelerate grain reserves and localized production buildouts, thereby affecting the global agricultural trade landscape. Furthermore, the energy shock highlights the dependence of agricultural systems on fossil fuels, driving agriculture toward a more energy-efficient and sustainable transformation. For the agricultural technology sector, this is both a crisis and a potential catalyst for accelerating technology adoption and supply chain digitalization.

Future Outlook

From a long-term trend perspective, the climate, geopolitical, and market volatility risks facing global food security will become increasingly intertwined. Over the next 3–5 years, agricultural technology is expected to play a more critical role in the following areas: improving yields and reducing resource consumption through precision agriculture and smart irrigation; leveraging satellite remote sensing and AI data platforms to enhance supply chain transparency and reduce losses in transportation and storage; developing alternative proteins and other novel food sources to reduce over-reliance on traditional grain markets; and enhancing soil carbon sequestration capacity through regenerative agriculture practices to strengthen the resilience of agricultural systems to extreme weather.

However, technology is not a panacea. The international community needs more robust trade coordination mechanisms, emergency reserve arrangements, and financial support for low-income countries to fundamentally alleviate structural food insecurity. The Iran conflict reminds us that the security boundaries of the global food system are far more fragile than imagined, and the most vulnerable groups are often the first to be exposed to risk.

Conclusion

The energy shock brought by the Iran conflict is not an equal test, but a profound redistribution. In the globalized food market, purchasing power determines access. When crisis strikes, market mechanisms direct scarce resources to the highest bidder, while those who cannot bid bear the most direct consequences. Understanding this reality is the starting point for building a more resilient and equitable global food system.