Long-Term Drivers of Food Prices
It is becoming increasingly apparent that the post-2004, across-the-board, commodity price increases, which initially appeared to be a spike similar to the ones experienced during the early 1950s (Korean War) and the 1970s (oil crises), have a more...
Main Authors: | , |
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Format: | Policy Research Working Paper |
Language: | English en_US |
Published: |
World Bank, Washington, DC
2013
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Subjects: | |
Online Access: | http://documents.worldbank.org/curated/en/2013/05/17739333/long-term-drivers-food-prices http://hdl.handle.net/10986/15594 |
Summary: | It is becoming increasingly apparent
that the post-2004, across-the-board, commodity price
increases, which initially appeared to be a spike similar to
the ones experienced during the early 1950s (Korean War) and
the 1970s (oil crises), have a more permanent character.
From 1997-2004 to 2005-12 nominal prices of energy,
fertilizers, and precious metals tripled, metal prices went
up by more than 150 percent, and most food prices doubled.
Such price increases, especially in food commodities, not
only fueled a debate on their key causes, but also alarmed
government officials, leading to calls for coordinated
policy actions. This paper examines the relative
contribution of various sector and macroeconomic drivers to
price changes of five food commodities (maize, wheat, rice,
soybeans, and palm oil) by applying a reduced-form
econometric model on 1960-2012 annual data. The drivers
include stock-to-use ratios, crude oil and manufacturing
prices, the United States dollar exchange rate, interest
rate, and income. Based on long-run elasticity estimates
(approximately -0.25 for the stock-to-use ratios, 0.25 for
the oil price, -1.25 for the exchange rate, and much less
for others), the paper estimates the contribution of these
drivers to food price increases from 1997-2004 to 2005-12.
It concludes that most of the price increases are accounted
for by crude oil prices (more than 50 percent), followed by
stock-to-use ratios and exchange rate movements, which are
estimated at about 15 percent each. Crude oil prices
mattered most during the recent boom period because they
experienced the largest increase. |
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