Hi Tim:
Interesting. In following up on your comment about the cost of fertilizer, I decided to look up the price of crude.
Weird. I think I'm paying attention and that, while I may not really remember the prices back in 1973, in recent years I've watched it most nights. So I should have a pretty good memory of where it's gone, lets say, for the last 4 years.
Well, we know there was a spike - let's guess to about $130 - and that MIGHT be in the 4 year window but mostly it's hung around the $100 mark...
So (according to published weekly price lists), in beginning 2006 the price was just over $60 - 2.5 years later its at $145 (July '08), six months later down to around $40 then a long slow rise from $40 to $100 in the last 2.5 years.
Turns out my memory sucks!
Interestingly, if you were to plot my highs/lows, it would appear that the long term trend is downward. Somehow, I don't think so... ("Lies, Damned Lies, and Statistics!")
Here's a question for the economists out there - while a drop in demand (given constant supply) should result in a fall in price. (This works commodity by commodity) But how does this work across the broader economy?
IOW, if oil becomes expensive enough that I invest in real insulation, weather stripping etc, my demand for oil is reduced permanently. Same idea if I convert my lawn to garden.
Insulating the house requires some materials but not much - growing my own vegetables, the same.
Ok, we all do that and the price of crude falls. And stays down for a few years. Maybe below the cost of production from Tar Sands, Deep Sea rigs, "fracking". So those projects get put on hold resulting in greater dependence on "conventional" oil sources.
Then what?
Any natural/political disaster that suddenly boots the price of oil means that, while the alternatives have become financially "interesting" again, the lead time is too great to respond. They're not "agile" enough. Oil gets too high, economic activity falls, price falls, major projects are cancelled as unprofitable and the whole cycle starts again?
Meanwhile, the remaining pool of a finite resource keeps shrinking....?
Oops - getting depressed again. L8R
Roger.