The Economist Guide to Commodities

1. Commodities are the Indispensable Foundation of Global Economic Development

WE LIVE OUR LIVES surrounded by products made, in part at least, using the world’s natural resources – from the clothes we wear and the food we eat to the cars we drive, the houses we live in and the electronic devices we use.

Essential building blocks. Commodities, defined as natural resources or raw materials, are fundamental to human existence and economic progress. From the food on our tables to the infrastructure that supports modern life, these basic goods are the starting point for nearly all manufactured products and services. Their exploitation and refinement have historically been catalysts for significant leaps in productivity and societal advancement.

Economic barometer. Commodity consumption directly correlates with per-head incomes and a country's stage of development. As nations industrialize and urbanize, their demand for industrial raw materials and energy soars, reflecting the need to build transport networks, electricity grids, and housing. This makes commodity markets a crucial indicator of global economic health and future growth trajectories.

Unique market traits. Unlike differentiated consumer goods, most commodities are uniform in quality and lack product differentiation, leading to a global benchmark price. They are typically intermediate goods, bought by manufacturing companies for further processing, rather than directly by households. This characteristic underscores their role as foundational inputs across diverse industries.

2. Commodity Markets are Shaped by a Dynamic Interplay of Supply, Demand, and Geopolitics

It is no longer possible just to assess the market fundamentals in order to determine the likely trend in a commodity’s price.

Beyond basics. While the cost of production provides a floor for prices, and demand/supply dynamics are central, commodity prices are influenced by a broader array of factors. These include:

• Macroeconomic conditions: Global liquidity, interest rates, and the value of the dollar (as most commodities are dollar-denominated).
• Geopolitical events: Wars, civil unrest, and trade restrictions can disrupt supply chains and create uncertainty.
• Weather patterns: Especially critical for agricultural commodities, leading to unpredictable harvest outcomes.
• Investor sentiment: Speculative activity and herd mentality can amplify price movements.

Price elasticity. The responsiveness of consumption to price changes (price elasticity of demand) varies significantly. Necessities like basic grains tend to have low elasticity, meaning demand remains relatively constant even with price fluctuations. However, what constitutes a "necessity" can differ across regions and income levels, impacting global demand patterns.

Supply response. The speed at which supply can react to changes in demand or price also varies. Agricultural products like sugar or soybeans can respond within a season, while new mining or energy projects can take a decade to come online. This lag often leads to periods of sustained high or low prices, as supply struggles to catch up with demand.

3. The Rise of Emerging Markets, Particularly China, Has Fundamentally Reshaped Global Commodity Demand

The principal driver of this growth was China, through urbanisation, infrastructure development, manufacturing growth and rising domestic vehicle ownership.

A new era of demand. The past decade has witnessed rapid economic development in the developing world, particularly China, fundamentally altering global commodity demand. China's traditional industrialization route, coupled with its emergence as the world's manufacturing hub, has made it the largest consumer of nearly all industrial commodities, with profound implications for global markets.

Shifting consumption patterns. This shift is evident across various commodities:

• Aluminium: China accounts for 42% of global consumption, driven by urbanization and manufacturing.
• Copper: China's consumption growth averaged 16% per year between 2000-2010, now accounting for 40% of the total, fueled by power generation and infrastructure.
• Lead: Asia's share of total consumption rose from 32% to 61% in a decade, with China at 44%, driven by vehicle production and battery manufacturing.
• Nickel: China accounts for 43.1% of world consumption due to stainless steel production.
• Coal: China consumes 48% of the world's coal, primarily for power generation.
• Soybeans: China is the largest consumer at nearly 71m tonnes, driven by animal feed demand for its growing meat consumption.

Beyond China. While China is the most prominent example, other emerging economies like India and Brazil are also significant drivers of commodity demand, reflecting their own industrialization, urbanization, and rising living standards. This broad-based growth in the developing world ensures resilient long-term demand for many commodities, despite cyclical downturns.

4. Commodities Have Evolved into Significant Financial Assets, Influencing Price Volatility and Investment Flows

The dramatic rise in investment interest in commodities means that other factors have to be considered, including: global liquidity levels... the value of the dollar... movements in alternative assets... interest rates... investor behaviour or sentiment... changes in the commodity-related financial products available; the oil price.

Financialization's impact. Historically, commodity exchanges were primarily for producers and consumers hedging risk. However, the late 1990s and 2000s saw a mushrooming of financial products, making direct investment in commodities easier and boosting market liquidity. This influx of financial capital means that macroeconomic factors and investor sentiment now play a crucial role in price determination, often independent of physical supply and demand.

Investment vehicles. Investors can now gain exposure to commodities through various instruments:

• Futures markets: Allow betting on future prices, offering spot, roll, and collateral returns.
• Commodity indices: Track baskets of commodity futures, providing passive investment access.
• Exchange-Traded Products (ETPs): Including ETFs (funds holding underlying assets) and ETNs (debt notes linked to commodity returns), making investment accessible to smaller investors.
• Structured products: Combine fixed income with commodity derivatives, though their popularity has waned post-2008.

Diversification and hedging. Commodities are attractive to investors for portfolio diversification, as their prices often move inversely to equities during catastrophic events. They also serve as a hedge against inflation, as commodity prices tend to rise with inflation. However, increased financialization has led to higher correlation with other financial markets, potentially eroding some diversification benefits.

5. Security of Supply and the Finite Nature of Resources Drive Innovation and Geopolitical Tensions

Geopolitical tensions throughout history can often be traced back to efforts to secure natural resources, and the rise of resource nationalism... has added to worries about a reliance on imported natural resources.

Strategic imperatives. Many industrial raw materials, particularly hydrocarbons and metals, are finite resources. This inherent scarcity, coupled with geographically concentrated supply, fuels security of supply fears and resource nationalism. Nations feel vulnerable when dependent on imports for essentials, leading to strategic investments and, historically, conflicts.

"Peak oil" and beyond. The "peak oil" theory, suggesting a terminal decline in oil supply, highlights the finite nature of resources. While technological advances and high prices have made unconventional oil extraction viable, the underlying concern about resource depletion drives efforts in:

• Recycling: Increased focus on metal recycling to conserve finite resources.
• Energy conservation: Promoting efficiency to reduce demand.
• Diversification: Investing in alternative energy sources and agricultural land abroad.

Producer power. The concentrated nature of supply for many resources grants significant power to a small number of producers. While attempts to form cartels (like the International Coffee Agreement) have largely failed, OPEC stands as a notable exception, demonstrating the potential for collective action to influence global oil prices, albeit with mixed success and internal challenges.

6. Resource-Rich Nations Often Face a "Resource Curse," Hindering Broader Economic Development

On the face of it, countries with sought-after resources have an advantage. They can use the resources for their own economic development (without fears about supply) and export the remainder, ideally at an attractive price. However, some of the wealthiest countries in terms of natural resources are the weakest in terms of gross national income or development.

Paradox of plenty. While abundant natural resources seem like an economic blessing, many resource-rich countries struggle with lower economic growth and development compared to resource-poor nations. This phenomenon, known as the "Dutch disease," describes how a booming resource sector can inadvertently undermine other parts of the economy.

Mechanisms of the "curse":

• Crowding out other sectors: High resource revenues reduce incentives to develop diverse industries.
• Exchange-rate appreciation: Commodity exports can strengthen the national currency, making other exports less competitive and encouraging imports, thus hindering domestic manufacturing.
• Limited employment: Resource extraction (mining, energy) is often capital-intensive but employs a small workforce, limiting its contribution to broad economic growth.
• Governance challenges: Large resource revenues can lead to corruption, rent-seeking, and political instability, diverting funds from public services and infrastructure.

Mitigation strategies. Recognizing these pitfalls, many resource-rich countries are now implementing measures to manage their wealth more effectively:

• Sovereign wealth funds: To sterilize excess liquidity, prevent currency appreciation, and invest abroad.
• Investment in human and physical capital: Directing windfall revenues towards education, healthcare, and infrastructure.
• Value-added processing: Encouraging domestic refining and processing of raw materials to capture more economic benefits, rather than just exporting raw goods.

7. Technological Advancements and Environmental Imperatives are Continuously Reshaping Commodity Production and Consumption

Breakthroughs in technology are also making it possible to exploit conventional resources that were previously impossible to extract.

Innovation in extraction. Technology is a game-changer in commodity supply, making previously inaccessible or uneconomical resources viable. Examples include:

• Unconventional gas and oil: Shale gas and oil extraction through hydraulic fracturing ("fracking") has transformed the energy landscape, particularly in the United States.
• Deepwater drilling: Accessing offshore reserves in challenging environments.
• SX-EW (solvent extraction and electrowinning): A cheaper process for refined copper production from oxides.

Environmental pressures. Growing awareness of climate change and pollution is driving significant shifts:

• Cleaner energy: Natural gas is favored over coal due to lower carbon emissions, and renewables are gaining traction.
• Recycling: Increased focus on secondary production for metals like aluminium and lead, which requires significantly less energy.
• Emission standards: Stricter regulations in industries like automotive (catalytic converters for platinum/palladium) and manufacturing influence material choices.
• Sustainable agriculture: Demand for organic and Fair Trade products, and concerns over GM crops.

New uses and substitutes. Technology also creates new applications and substitutes:

• Copper: Benefiting from renewable energy systems (wind turbines require more copper).
• Silver: Growing demand from the solar energy industry (photovoltaic panels).
• Tin: Potential new applications in rechargeable batteries and catalysts.
• Substitutes: Plastics and aluminium replacing lead in some applications, synthetic rubber competing with natural rubber, and alternative sweeteners challenging sugar.

8. Price Volatility is an Inherent Feature of Commodity Markets, Driven by Macroeconomics and Sentiment

In the past couple of decades, cocoa prices have been hugely volatile. This is partly because supply is concentrated in only a few producers, so adverse weather or civil unrest (which disrupts output or trade) in any of the large producers leads to market shortages.

Swings and cycles. Commodity prices are notoriously volatile, often experiencing dramatic peaks and troughs. This is due to a combination of factors:

• Supply inelasticity: For many commodities, especially metals and tree crops, supply cannot quickly respond to demand changes due to long lead times for new projects or plantations.
• Exogenous shocks: Unpredictable events like extreme weather, natural disasters, labor unrest, or geopolitical conflicts can cause sudden supply disruptions.
• Concentrated production: When a few countries dominate supply (e.g., South Africa for platinum, West Africa for cocoa), local issues can have global price impacts.
• Financial speculation: The increased participation of investment funds in futures markets can amplify price movements, sometimes detaching prices from underlying fundamentals.

Macroeconomic influences. Beyond specific commodity dynamics, broader economic conditions play a significant role:

• Global growth outlook: Strong economic growth typically boosts demand and prices, while slowdowns depress them.
• Monetary policy: Loose monetary policy and high liquidity can fuel speculative buying, while tightening can lead to sell-offs.
• Currency fluctuations: As most commodities are dollar-denominated, a weaker dollar makes them cheaper for buyers using other currencies, potentially increasing demand and prices.

Market-specific factors. Individual commodity markets also have unique drivers of volatility:

• Agricultural commodities: Susceptible to disease, crop cycles, and government intervention (e.g., export bans for rice or cotton).
• Energy commodities: Highly sensitive to geopolitical risks in producing regions and OPEC decisions.
• Metals: Influenced by industrial demand cycles and the availability of scrap or alternative materials.