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Farming alone doesn't drive food prices


By Robert Paarlberg (China Daily)
Updated: 2011-02-24 07:38
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International food prices began rising again last summer, and experts - from economists to government ministers - are debating the causes and consequences, and whether it will last long.

International food price trends are certainly important, but not as important as domestic price trends, because international trade does not satisfy most of the food demands around the world. Particularly for large countries like China, which are essentially self-sufficient in basic cereal supplies, domestic price trends will tend to be driven more by domestic macroeconomic policy than by price fluctuations in the world market.

The current rising trend in international food prices is not by itself surprising. The International Food Policy Research Institute recently projected that by 2030 the world price of wheat would be on average 17 percent higher than in 2000, and corn prices would be 33 percent higher. This rise is expected because of increased commercial demand driven by population and income growth, especially in transitional economies such as China.

Today's sudden and surprising international price fluctuations were not widely predicted, however. In 2007 and 2008 international food prices increased sharply. The export price of corn doubled during this period, and the international price of rice tripled. Wheat available for export reached its highest price in 28 years. Global macroeconomic trends were one cause of the increase in 2008, because prices for other commodities - including metals and fuel - were rising at the same time.

Then at the end of 2008 international food prices declined by 40 percent, once again because of forces from outside the farming sector - a Western financial crisis that plunged North America and Europe into recession. In the summer of 2010, however, international food prices began rising again, and by February 2011 they stood 28 percent above the level of a year earlier. Macroeconomic forces were at work again, because international fuel and metals prices were rising as well.

The macroeconomic explanation does not convince everybody. For example, some say it is the low level of food stocks around the world that drives up prices. This was a factor in 2008, but by 2010 those stocks were much higher - up by 40 percent - so this can't be the current explanation. Others blame the booming food demand in China and India for the rise in prices, but when prices first increased in 2008 neither China nor India was a net importer of cereals. Still others say the high prices reflect an exhaustion of modern farming, but US Department of Agriculture's calculations show that productivity growth in farming has been accelerating across the world.

Another group says prices are rising because too much land is being used for biofuel production. But the highest price rise has been for non-biofuel crops such as rice, wheat and cotton. Then we have a group that says it is early evidence of climate change, but the production shortfalls that helped drive up wheat prices in 2010 took place in Russia and Canada, both high-latitude countries where global warming would be good for future production.

Apart from macroeconomic forces, the trade policies of some exporting countries have worsened global price fluctuations recently. At the beginning of summer last year, there was no fundamental reason to expect higher wheat prices because global stocks were 50 percent above the 2008 level and stocks in the US - the largest wheat exporting country - were at a 23-year high.

But when a severe drought in Russia drove up prices in that country, the government banned all grain exports. That created fear in the international market, which aggravated when Canada's wheat crop fell short of expectations because of excessive moisture problems and Australia's crop was damaged by floods.

Yet at the end of 2010, world wheat stocks were still 40 percent above the 2008 level and US stocks were still up 150 percent. Fear, however, was now driving international prices, worsened by new worries over drought in China's winter wheat belt.

For countries like China, the focus should not be on international food prices but on domestic price trends. The worrying increase in China's domestic consumer price index (up 5.4 percent last year) has not been generated by international shortages but instead by two decisions China has taken. One was the timely and sound decision to provide a large economic stimulus in 2008-09, to protect the country against a painful slowdown in growth during the global financial crisis. The second decision, to prevent China's currency from rising to an "appropriate" level, is debatable, though.

If China raises the exchange rate to the proper level, it can ease the inflation pressure and lower domestic prices, including food prices. Things could get worse if China tries to fight inflation by raising interest rates alone, because that would bring down domestic price levels at the expense of economic growth.

It is good that China is responding to its current threat of drought with initiatives such as cloud seeding, water diversion to arid and drought-prone areas, and assistance to farmers who need irrigation. Yet the management of food price volatility requires action outside the food and farming sector as well.

The author is B. F. Johnson professor of political science, Wellesley College, and adjunct professor of public policy, Harvard Kennedy School.

Farming alone doesn't drive food prices

(China Daily 02/24/2011 page9)

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