QUOTE (time_and_tide @ Jan 25 2008, 10:31 PM)

But why should that be? There must be thousands of times more floating around now than in, say, the Bronze Age. Was an Ounce of gold then worth thousands of times more than an ounce now? I think not.
Hi T&T,
You are asking a very good question and the same one that everyone asks when thinking about investing in gold. Bottom line is that gold has value because people want to own it. Which simply moves the question to 'why do people want to own it?'. I don't think there is one answer to this but several;
1. It has very good properties as an ultimate form of money - finite, is not easily destroyed, divisible, portable.
2. History of wealth preservation - has held its purchasing power for over 4000 years. From www.eh.net you can calculate that gold has fluctuated, in todays money, between £200 and £900 per oz since the middle ages. On this scale £460/oz doesn't look especially expensive. Of course this is, by definition, a weight of history argument and may not predict the future. But it's a long history!
3. Aesthetic appeal - the jewellery connection.
4. Protection against currency collapse. Gold will likely lag other forms of investment during times of expanding real gdp. However, it provides insurance against the possibility of financial and/or economic meltdown. Obvious examples include Weimer republic germany and Zimbabwe recently. Could that happen here? Unlikely but with the parlous state of our economy at the moment who knows?
5. Gold is no-ones debt. Any bank/BS deposit or bond you have is someone else's debt. Ultimately confidence in this paper money is predicated on the belief that this debt can be paid. In the event of mass default your savings would be wiped out just as surely as the debt is. One does not exist without the other.
Further to these arguments it is worth noting that gold is valued most highly by people in those countries that are currently undergoing rapid economic development, BRIC and middle east especially. Also by those that hold the bulk of the worlds remaining energy reserves, russia, ME. As this energy becomes scarcer and more expensive so gold should also appreciate.
wrt your question about how much gold is around, this is currently estimated at 150,000 tonnes. Equally important, however, is that production is declining and becoming more energy intensive - very much like the 'peak oil' scenario originally put forward by Hubbert. Chances are we are past 'peak gold' and total recoverable levels will be less than double the current mined amount. When comparing the amount around now compared to, say, the middle ages, you need to balance that against the massive explosion in population since then.
Rgds
UM