richardhutnik said:
You use gold and silver in economies AS money. The thing is that, when markets break down, and people can't trust anything, and get basic goods and services, they want food and clothing. They don't want gold or silver. You can historically see what happens, from Katrina onward, and even the Soviet Empire. People bartered goods and services. Watch this:
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Maybe in the very very short run. But give people even a few weeks, and you'll see commodity money being used again.
http://en.wikipedia.org/wiki/Commodity_money
After the initial crisis, and panic is over, there needs to be some form of currency. Otherwise, very little trading can occur.
http://en.wikipedia.org/wiki/Coincidence_of_wants