What is the Link Between Commodity Prices and Inflation?

Inflation tends to manifest itself through everyday expenses. Fuel costs, food costs and transportation become more costly. Behind many of these changes is a class of raw materials called commodities. Within this ecosystem, energy products, agricultural goods and metals form the foundation of global production and supply chains.

As these materials are located at the starting point of the economic pipeline, the fluctuations in commodity prices often have a knock-on effect on the broader economy. Exploring this connection can help to understand why inflation sometimes speeds up in times of commodity market volatility.

Understanding the role of commodities in relation to inflation like this can be useful to put market movements into a wider economic context.

Understanding Commodities and Inflation In The Global Economy

Commodities are simple raw materials that are used to manufacture goods and services. They are usually standardised products that can be traded internationally in a commodity exchange.

Common categories include:

• Energy commodities: crude oil, natural gas, heating oil
• Agricultural commodities: wheat, corn, soybeans, coffee
• Industrial metals: copper, aluminium, nickel
• Precious metals: gold, silver, platinum

These materials are critical raw materials needed for manufacturing, construction, transportation and food production. Because they are in the early stages of supply chains, commodity price fluctuations may affect production costs for businesses.

For example:

• Increasing oil prices can drive up the cost of transportation and logistics.
• Higher wheat prices may have impacts on food manufacture.
• Copper price increases may affect construction and electronics production.

When these costs increase in many industries at the same time, the prices paid by consumers may increase as well. This is a dynamic that contributes to the observed relationship between commodity prices and inflation, although the extent of impact may vary depending on economic conditions.

What Inflation Measures In An Economy

Inflation is the term used to describe the general rise in prices of goods and services over time. It indicates the changes in the purchasing power of money in an economy.

Most countries measure inflation using consumer price indices (CPI), which follow a basket of everyday items which include:

• Food
• Housing
• Transportation
• Healthcare
• Energy

When the CPI increases, it means that the average cost of living has increased. According to the U.S. Bureau of Labour Statistics, the Consumer Price Index in the United States rose by 3.4% year over year in April 2024. Energy and food components in CPI are especially sensitive to changes in world commodity markets.

Because commodities are often the raw materials for many consumer products, price changes in these markets may contribute to inflation trends, though they are not the sole determining factor.

The Relationship Between Inflation And Commodity Prices

The relationship between inflation and the price of commodities tends to work in more than one direction. Commodity markets may both cause inflation and react to it.

Commodities As Early Inflation Signals

Commodity prices tend to react quickly to supply, demand and geopolitical events. Because these markets are quick to respond, they may sometimes lead the broader consumer prices.

For example:

• If crude oil prices increase dramatically, the cost of transportation may rise.
• Businesses may eventually shift some of those costs to consumers.
• Consumer price indices may go up after these adjustments.

This process means that sometimes, commodity markets are early indicators for inflationary pressure, although this relationship is not always consistent.

Inflation Affecting Commodity Demand

The reverse relationship can also be the case. When inflation increases, the economic conditions may change in a way that will affect the demand for commodities.

Examples include:

• Increased inflation could cause central banks to increase interest rates.
• Slower economic activity may lead to a drop in demand for industrial commodities.
• Demand shifts may then have impacts on commodity prices.

As a result of these feedback loops, the relationship between commodity prices and inflation is not necessarily linear.

How Different Commodities and Inflation Are Impacted

All commodities do not have the same effect on inflation. Some of the categories play a more direct role in consumer price indices than others.

Energy commodities tend to have the most immediate impact on inflation since energy expenses impact transportation, manufacturing, and utilities at the same time. Food commodities also play an important role, particularly in economies where food constitutes a large proportion of household spending.

Real-World Example: Oil, Commodity Prices and Inflation

Crude oil provides one of the commonly cited examples of the relationship between commodity prices and inflation.

Oil affects a number of economic activities:

• Fuel for vehicles and aviation
• Electricity generation in some regions
• Petrochemical production is used in plastics and packaging

When oil prices increase sharply, businesses that depend on transportation may be faced with higher costs of doing business. These increases may eventually be reflected in consumer prices of goods and services, although the pass-through effect may vary.

The size of global commodity trading also demonstrates the importance of this market in the economy. According to the Futures Industry Association, the worldwide exchange-traded futures and options volume totaled approximately 137 billion contracts in 2023, with commodity derivatives accounting for a significant share of the action. Such large trading volumes attest to the close relationship between commodity markets and global economic expectations, including inflation trends.

Why Commodities Are Sometimes Seen As Inflation Hedges

In many of the discussions regarding commodities and inflation, commodities are sometimes referred to as potential inflation hedges. This idea is based on the fact that the prices of commodities tend to behave in periods of rising inflation.

Possible reasons include:

• Raw material costs may increase during inflationary environments.
• Commodity prices may rise alongside general price levels.
• Investors sometimes allocate exposure to commodities when inflation expectations increase.

However, this relationship can vary depending on economic conditions, and commodities may not always act as effective hedges against inflation.

For instance:

• During recessions, the demand for commodities may drop despite high inflation.
• Technological changes or increases in supply may lower the price of commodities in spite of inflation in other areas.

Factors That Influence Commodity Prices and Inflation

Several forces can influence commodity markets, which in turn affect their connection with inflation.

Supply Conditions

Weather events, geopolitical tensions, and mining disruptions may affect supply.

Examples include:

• Drought affecting agricultural harvest
• Production limits of oil-producing countries
• Interruptions in mining affecting metal availability

Global Demand

Economic growth may lead to a rise in demand for raw materials. For example:

• Infrastructure expansion could cause an increase in copper demand.
• Industrial growth may drive up the use of energy.

Currency Movements

Most commodities are priced globally in U.S. dollars. Currency movements may therefore affect commodity demand in different regions. A stronger dollar can sometimes reduce purchasing power for countries importing commodities.

Speculative Activity

Commodity futures markets allow participants to trade based on expectations about future prices. Market sentiment may influence price movements even before supply or demand changes fully appear, which may increase short-term volatility.

Key Terms Related To Commodities And Inflation

Investors should develop a good understanding of these terms to help clarify discussions around the relationship between inflation and commodity markets.

Commodities and Inflation In The Global Economic Scenario

Commodity markets are the foundation of the world's economy. Energy, agricultural goods, and industrial metals are important inputs for production, transportation, and infrastructure. This is because changes in prices of these commodities can affect business costs and at times, are a contributing factor to changes in inflation trends. At the same time, inflation expectations, economic growth, and global demand can also influence commodity prices, making the relationship between inflation and commodity markets far from one-directional.

Platforms like Dealing.com may provide access to commodities, stocks with commodity ties, and exchange-traded funds can be researched. With access to multiple exchanges and a wide range of assets, users may explore international markets and better understand movements in commodities and inflation in a broader economic context, subject to platform terms, eligibility, and market risks.

Disclaimer: This content is for educational purposes only and does not constitute investment advice, personal recommendations, or a solicitation to buy or sell financial instruments. All investments involve risk, including potential loss of capital. Investors should consult professional financial advisors and consider their personal circumstances before making any investment decision.