[quote author="CapitalismWorks" date=1238201032]Echoing Earthbm's comments, there is significant supply destruction going on in commodity space as result of falling demand and prices. This will be costly across the complex when the global economy starts moving forward again, though that may be some ways off. Take the cattle example. In order to increase production of beef, feeder cattle must be diverted from the feed lot (and eventual slaughter) to pasture for breeding. The cycle in cattle production necessary to ramp up output is typically 8-10 years. Obviously, diverting cattle from feed to breeding reduces supply and increases prices in the short run.
Tar sands oil production is break-even at ~$65/barrel. As oil prices have plummeted a great deal of supply has come off-line. Though these additional supplies can be brought back online it is not without cost and delay.
If you believe that future aggregate demand will return or exceed 2007 levels one the current recession is past (I do), then commodities coudl reasonably expected to benefit.</blockquote>
I totally agree with you, the drop in demand is being meet with cutbacks in supply. Once demand picks back up, prices will increase for a lot of things due to those supply cutbacks. However, I don't seem demand returning to the 2005-2007 levels for a logn, long time. The savings rate increase we've seen will be here to stay for quite some time and that will keep demand from increasing too much.