What are commodities and why do they make headlines so often?
If you follow economic news, you've probably come across headlines like: "Rising commodities put pressure on inflation" or "Falling commodities reduce government revenue."
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But after all, you know exactly what are commodities and why does this term appear so often in the news?
More than just technical jargon, this concept is present in the daily lives of millions of people, even those who have never set foot on a stock exchange.
Commodities are responsible for influencing the price of bread at the bakery, the cost of fuel at the gas station, the exchange rate of the dollar, and even tax collection in Brazil.
Understanding how it works is not just an academic exercise, but a necessity for anyone who wants to understand how the global economy works in practice and how it directly affects everyday life.
Summary
- Definition: What are commodities?
- Types of commodities
- How the commodities market works
- Why do they appear so much in the headlines?
- Practical impacts (Brazil and the world)
- Recent case studies
- Conclusion
- Frequently Asked Questions
1. Definition: What are commodities?
The term commodity comes from English and means “goods” or “basic consumer product”.
In the economic context, it refers to goods of primary origin, produced on a large scale, with little differentiation between suppliers.
This means that a bag of Brazilian Arabica coffee, as long as it meets quality standards, can be traded in the same market as one from another country, without any major distinctions.
One of the central characteristics of commodities is standardization. This ensures they are accepted and compared globally, enabling fair trading in international markets.
This fungibility is what makes global pricing possible. When someone asks what are commodities, you must think precisely about this aspect of uniformity and interchangeability.
Another key point is that commodity prices are highly sensitive to external factors. Weather, geopolitics, exchange rates, and logistics costs can all cause fluctuations in a matter of days.
A clear example was seen during the Covid-19 pandemic, when the breakdown of supply chains and the increased demand for agricultural and energy inputs led to a sharp rise in the price of commodities such as soybeans and oil.
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2. Types of commodities
The universe of commodities is broad and can be divided into a few main categories.
| Category | Examples | Particularities |
|---|---|---|
| Agricultural | soybeans, corn, wheat, coffee, cotton | They depend on climate and logistics, and are strongly influenced by harvest and off-season. |
| Livestock | beef, pork and chicken | Exposed to diseases and international health requirements |
| Minerals and energy | oil, gas, iron, copper, gold | Strongly impacted by geopolitical tensions |
| Environmental | carbon credits, wood, water | Growing segment, aligned with the sustainability agenda |
Agricultural commodities, also called soft commodities, are vital to global food security.
When prices fluctuate, the impact falls directly on the consumer, who notices the increase in the cost of basic foods.
Mineral and energy commodities — often called hard commodities — are linked to infrastructure, industry and transport.
Oil, for example, is one of the most monitored commodities in the world, as it influences the price of fuel, energy and the transportation of goods.
3. How the commodities market works
3.1 Price formation
Commodities are traded on commodity exchanges, such as the Chicago Board of Trade and the São Paulo Stock Exchange (B3), through futures contracts.
These contracts allow producers and buyers to lock in prices in advance, protecting themselves against fluctuations.
This practice, known as hedge, is essential in sectors with tight margins.
Prices follow a logic of global supply and demand. If there is excess soybean production in Brazil and the US, prices fall.
If a frost compromises the coffee harvest, prices rise. Therefore, analysts constantly monitor weather forecasts, harvests, and global stocks.
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3.2 Volatility and risks
Volatility is one of the hallmarks of commodities. Climate change, such as El Niño and La Niña, directly affects harvests.
Geopolitical issues, such as wars or sanctions, can paralyze oil or gas exports, affecting consumer countries.
The market is also affected by exchange rate factors. When the real depreciates against the dollar, Brazilian products become cheaper for foreign buyers, which can boost exports.
This dynamic is especially relevant in exporting countries, such as Brazil.
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4. Why do they appear so much in the headlines?
Commodities are constantly in the news because their behavior influences fundamental economic and social variables.
First, they directly affect inflation. Rising corn prices impact the price of meat and meat products; rising oil prices make transportation and electricity more expensive.
These are cascading effects that quickly reach the end consumer.
Furthermore, commodities have a significant impact on the GDP of exporting countries. In Brazil, products such as soybeans, iron ore, and oil account for a significant portion of the trade balance.
A drop in these prices could compromise government revenue, reduce investment, and affect job creation.
Another reason for so many headlines is geopolitics. Decisions by producing countries, embargoes, tariffs, or international conflicts move markets and have global repercussions.
Just remember how the war in Ukraine affected the supply of wheat and natural gas to Europe.
5. Practical impacts (Brazil and the world)
In Brazil
Brazil is one of the world's largest exporters of commodities, especially soybeans, coffee, beef and iron ore.
In 2024, soybeans accounted for more than 40% of Brazilian agricultural exports. This demonstrates the country's economy's dependence on these products.
On the other hand, this dependence poses risks. When prices fall in the international market, the impact on tax revenue is immediate.
Furthermore, the so-called “Dutch disease” can occur: exchange rate appreciation caused by commodity exports can harm the competitiveness of national industry.
In the world
On the international stage, commodities are strategic instruments. Countries that dominate the production of oil or rare earth metals wield great geopolitical power.
This is the case with Saudi Arabia in oil and China in the export of rare earths, which are fundamental for modern technology.
Increased environmental concerns have also increased interest in sustainable commodities.
Carbon credits and renewable sources, once marginal, are now gaining increasing attention in the news and in international negotiations.
Recent case studies
A recent example was the fluctuation in the Arabica coffee market in Brazil. By 2025, analysts projected a bumper harvest for 2026, but irregular rainfall changed forecasts, putting pressure on international prices and increasing uncertainty for exporters.
Another case is Brazilian soybeans, whose production estimate in 2025/26 exceeds 180 million tons.
This volume makes Brazil the world's largest supplier, which strengthens its position in the trade balance, but also makes it vulnerable to any logistics crisis or trade barriers imposed by importers.
The tariffs imposed by the US on some Brazilian products are also worth highlighting.
Although the direct impacts on GDP are considered modest, specific sectors, such as agriculture, are strongly affected by these measures.
Conclusion
To understand what are commodities is to understand how the world economy works at its core.
These products shape the trade balance, influence inflation and directly impact people's daily lives.
In Brazil, where the economy depends heavily on agribusiness and mining, monitoring the commodities market means monitoring the country's economic future.
After all, it's not just about cold numbers in reports: it's about prices that reach the supermarket, the gas station, and even the value of your electricity bill.
Frequently Asked Questions
Q1: Are commodities always raw materials?
Yes, in general they are basic products, little industrialized, which serve as input for other goods.
Q2: Why are commodities so volatile?
Because they depend on external variables such as weather, politics, and exchange rates. A single frost or war can significantly affect prices.
Q3: Does Brazil benefit from this dependence?
Yes, because it generates revenue and strengthens foreign trade. But it also makes it vulnerable to international shocks.
Q4: Is it worth investing in commodities?
It can be advantageous as a form of diversification, but caution is needed, as the risk of fluctuation is high.
Q5: Are sustainable commodities a trend?
Yes. Carbon credits, clean energy, and water are gaining increasing traction, aligning economics and sustainability.
