Sunday, June 16, 2013

Trends in commodity prices.

Source: The Economist
Prices of fossil fuels have gone way up in the past half century, suggesting that we are as expected depleting non-renewable resources. They have also gone up for gold, copper and beef -- perhaps due to demand increasing faster than supply.

Prices have done down for sugar, rice, corn and wheat, suggesting that crop varieties have been greatly improved. Yields are increasing faster than the population has grown.

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