Tax on Commodity Profits Could Postpone Scarcity

With the Great Recession, the red-hot commodities market has cooled, but that may not last long as the era of scarcity nips at the heels.

One of the world's top mineral holders – Australia – is proposing a tax on "super profits" of mining companies, or profits beyond what's needed for reinvestment.

The proposal signals a new backdrop for commodities, with…