Commodity market

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Commodity markets are markets where raw or primary products are exchanged. These raw commodities are traded on regulated commodities exchanges, in which they are bought and sold in standardized contracts.

This article focuses on the history and current debates regarding global commodity markets. It covers physical product (food, metals, electricity) markets but not the ways that services, including those of governments, nor investment, nor debt, can be seen as a commodity. Articles on reinsurance markets, stock markets, bond markets and currency markets cover those concerns separately and in more depth. One focus of this article is the relationship between simple commodity money and the more complex instruments offered in the commodity markets.

See List of traded commodities for some commodities and their trading units and places.

History

The modern commodity markets have their roots in the trading of agricultural products. While wheat and corn, cattle and pigs, were widely traded using standard instruments in the 19th century in the United States, other basic foodstuffs such as soybeans were only added quite recently in most markets. For a commodity market to be established, there must be very broad consensus on the variations in the product that make it acceptable for one purpose or another.

The economic impact of the development of commodity markets is hard to overestimate. Through the 19th century "the exchanges became effective spokesmen for, and innovators of, improvements in transportation, warehousing, and financing, which paved the way to expanded interstate and international trade."

Early history of commodity markets

Historically, dating from ancient Sumerian use of sheep or goats, other peoples using pigs, rare seashells, or other items as commodity money, people have sought ways to standardize and trade contracts in the delivery of such items, to render trade itself more smooth and predictable.

Commodity money and commodity markets in a crude early form are believed to have originated in Sumer where small baked clay tokens in the shape of sheep or goats were used in trade. Sealed in clay vessels with a certain number of such tokens, with that number written on the outside, they represented a promise to deliver that number. This made them a form of commodity money - more than an I.O.U. but less than a guarantee by a nation-state or bank. However, they were also known to contain promises of time and date of delivery - this made them like a modern futures contract. Regardless of the details, it was only possible to verify the number of tokens inside by shaking the vessel or by breaking it, at which point the number or terms written on the outside became subject to doubt. Eventually the tokens disappeared, but the contracts remained on flat tablets. This represented the first system of commodity accounting.

However, the commodity status of living things is always subject to doubt - it was hard to validate the health or existence of sheep or goats. Excuses for non-delivery were not unknown, and there are recovered Sumerian letters that complain of sickly goats, sheep that had already been fleeced, etc.

If a seller's reputation was good, individual backers or bankers could decide to take the risk of clearing a trade. The observation that trust is always required between market participants later led to credit money. But until relatively modern times, communication and credit were primitive.

Classical civilizations built complex global markets trading gold or silver for spices, cloth, wood and weapons, most of which had standards of quality and timeliness. Considering the many hazards of climate, piracy, theft and abuse of military fiat by rulers of kingdoms along the trade routes, it was a major focus of these civilizations to keep markets open and trading in these scarce commodities. Reputation and clearing became central concerns, and the states which could handle them most effectively became very powerful empires, trusted by many peoples to manage and mediate trade and commerce.

Size of the market

The trading of commodities consists of direct physical trading and derivatives trading.The commodities markets have seen an upturn in the volume of trading in recent years. In the five years up to 2007, the value of global physical exports of commodities increased by 17% while the notional value outstanding of commodity OTC (over the counter) derivatives increased more than 500% and commodity derivative trading on exchanges more than 200%.

The notional value outstanding of banks’ OTC commodities’ derivatives contracts increased 27% in 2007 to $9.0 trillion. OTC trading accounts for the majority of trading in gold and silver. Overall, precious metals accounted for 8% of OTC commodities derivatives trading in 2007, down from their 55% share a decade earlier as trading in energy derivatives rose.

Global physical and derivative trading of commodities on exchanges increased more than a third in 2007 to reach 1,684 million contracts. Agricultural contracts trading grew by 32% in 2007, energy 29% and industrial metals by 30%. Precious metals trading grew by 3%, with higher volume in New York being partially offset by declining volume in Tokyo. Over 40% of commodities trading on exchanges was conducted on US exchanges and a quarter in China. Trading on exchanges in China and India has gained in importance in recent years due to their emergence as significant commodities consumers and producers. ^[1]

Recent Trends in Commodities

The 2008 global boom in commodity prices - for everything from coal to corn – was fueled by heated demand from the likes of China and India, plus unbridled speculation in forward markets. That bubble popped in the closing months of 2008 across the board. As a result, farmers are expected to face a sharp drop in crop prices, after years of record revenue. Other commodities, such as steel, are also expected to tumble due to lower demand. This will be a rare positive for manufacturing industries, which will experience a drop in some input costs, partly offsetting the decline in downstream demand. ^[2]

Returns

Studies show that fully-collateralized commodity futures have historically offered the same return and Sharpe ratio as equities^[3]. Commodities have an approximate expected return of 5% in real terms which is based on the risk premium for 116 different commodities weighted equally since 1888 (Source Report 219171-Wharton Business School). Investment professionals often too mistakenly claim there is no risk premium in commodites.

Spot trading

Spot trading is any transaction where delivery either takes place immediately, or with a minimum lag between the trade and delivery due to technical constraints. Spot trading normally involves visual inspection of the commodity or a sample of the commodity, and is carried out in markets such as wholesale markets. Commodity markets, on the other hand, require the existence of agreed standards so that trades can be made without visual inspection.

Forward contracts

A forward contract is an agreement between two parties to exchange at some fixed future date a given quantity of a commodity for a price defined today. The fixed price today is known as the forward price.

Futures contracts

A futures contract has the same general features as a forward contract but is transacted through a futures exchange.

Commodity and futures contracts are based on what’s termed forward contracts. Early on these forward contracts — agreements to buy now, pay and deliver later — were used as a way of getting products from producer to the consumer. These typically were only for food and agricultural products. Forward contracts have evolved and have been standardized into what we know today as futures contracts. Although more complex today, early forward contracts for example, were used for rice in seventeenth century Japan. Modern forward, or futures agreements, began in Chicago in the 1840s, with the appearance of the railroads. Chicago, being centrally located, emerged as the hub between Midwestern farmers and producers and the east coast consumer population centers.

Hedging

Hedging, a common (and sometimes mandatory) practice of farming cooperatives, insures against a poor harvest by purchasing futures contracts in the same commodity. If the cooperative has significantly less of its product to sell due to weather or insects, it makes up for that loss with a profit on the markets, since the overall supply of the crop is short everywhere that suffered the same conditions.

Whole developing nations may be especially vulnerable, and even their currency tends to be tied to the price of those particular commodity items until it manages to be a fully developed nation. For example, one could see the nominally fiat money of Cuba as being tied to sugar prices, since a lack of hard currency paying for sugar means less foreign goods per peso in Cuba itself. In effect, Cuba needs a hedge against a drop in sugar prices, if it wishes to maintain a stable quality of life for its citizens.

Delivery and condition guarantees

In addition, delivery day, method of settlement and delivery point must all be specified. Typically, trading must end two (or more) business days prior to the delivery day, so that the routing of the shipment can be finalized via ship or rail, and payment can be settled when the contract arrives at any delivery point.

Standardization

U.S. soybean futures, for example, are of standard grade if they are "GMO or a mixture of GMO and Non-GMO No. 2 yellow soybeans of Indiana, Ohio and Michigan origin produced in the U.S.A. (Non-screened, stored in silo)," and of deliverable grade if they are "GMO or a mixture of GMO and Non-GMO No. 2 yellow soybeans of Iowa, Illinois and Wisconsin origin produced in the U.S.A. (Non-screened, stored in silo)." Note the distinction between states, and the need to clearly mention their status as GMO (Genetically Modified Organism) which makes them unacceptable to most organic food buyers.

Similar specifications apply for cotton, orange juice, cocoa, sugar, wheat, corn, barley, pork bellies, milk, feedstuffs, fruits, vegetables, other grains, other beans, hay, other livestock, meats, poultry, eggs, or any other commodity which is so traded.

Regulation of commodity markets

Cotton, kilowatt-hours of electricity, board feet of wood, long distance minutes, royalty payments due on artists' works, and other products and services have been traded on markets of varying scale, with varying degrees of success.

Generally, commodities' spot and forward prices are solely dependent on the financial return of the instrument, and do not factor into the price any societal costs, e.g. smog, pollution, water contamination, etc. Nonetheless, new markets and instruments have been created in order to address the external costs of using these commodities such as man-made global warming, deforestation, and general pollution. For instance, many utilities now trade regularly on the emissions markets, buying and selling renewable emissions credits and emissions allowances in order to offset the output of their generation facilities. While many have criticized this as a band-aid solution, others point out that the utility industry is the first to publicly address it's external costs. Many industries, including the tech industry and auto industry, have done nothing of the sort.

In the United States, the principal regulator of commodity and futures markets is the Commodity Futures Trading Commission.

Proliferation of contracts, terms, and derivatives

However, if there are two or more standards of risk or quality, as there seem to be for electricity or soybeans, it is relatively easy to establish two different contracts to trade in the more and less desirable deliverable separately. If the consumer acceptance and liability problems can be solved, the product can be made interchangeable, and trading in such units can begin.

Since the detailed concerns of industrial and consumer markets vary widely, so do the contracts, and "grades" tend to vary significantly from country to country. A proliferation of contract units, terms, and futures contracts have evolved, combined into an extremely sophisticated range of financial instruments.

These are more than one-to-one representations of units of a given type of commodity, and represent more than simple futures contracts for future deliveries. These serve a variety of purposes from simple gambling to price insurance.

Oil

Building on the infrastructure and credit and settlement networks established for food and precious metals, many such markets have proliferated drastically in the late 20th century. Oil was the first form of energy so widely traded, and the fluctuations in the oil markets are of particular political interest.

Some commodity market speculation is directly related to the stability of certain states, e.g. during the Persian Gulf War, speculation on the survival of the regime of Saddam Hussein in Iraq. Similar political stability concerns have from time to time driven the price of oil.

The oil market is an exception. Most markets are not so tied to the politics of volatile regions - even natural gas tends to be more stable, as it is not traded across oceans by tanker as extensively.

Commodity markets and protectionism

Developing countries (democratic or not) have been moved to harden their currencies, accept IMF rules, join the WTO, and submit to a broad regime of reforms that amount to a hedge against being isolated. China's entry into the WTO signalled the end of truly isolated nations entirely managing their own currency and affairs. The need for stable currency and predictable clearing and rules-based handling of trade disputes, has led to a global trade hegemony - many nations hedging on a global scale against each other's anticipated protectionism, were they to fail to join the WTO.

There are signs, however, that this regime is far from perfect. U.S. trade sanctions against Canadian softwood lumber (within NAFTA) and foreign steel (except for NAFTA partners Canada and Mexico) in 2002 signalled a shift in policy towards a tougher regime perhaps more driven by political concerns - jobs, industrial policy, even sustainable forestry and logging practices.

Commodities exchanges

Largest commodities exchanges

Exchange	Country	Volume per month $M
New York Mercantile Exchange	USA	19^[4]
Tokyo Commodity Exchange	Japan	-
NYSE Euronext	EU	-
Dalian Commodity Exchange	China	-
Multi Commodity Exchange	India	-