[quote author="acpme" date=1228569918]milwaukee needs to tread lightly. they're walking the fine line between the mass mailing the local pennysaver and undermining congress's constitutional authority "To coin Money, and regulate the Value thereof..."
that line of the constitution is followed by:
"To provide for the Punishment of counterfeiting the Securities and current Coin of the United States;"
then i recalled reading these headlines in the news yesterday:
<em>Pentagon to Detail 20,000 Uniformed Troops Within the United States</em>
putting on my tinfoil hat for a moment... coincidence??? methinks the people of milwaukee are in for a real a$$-whoopin'.</blockquote>
There is an extensive history of local currencies in the US. They have not had trouble with the US Treasury because they do not purport to be dollars. See
http://www.appropriate-economics.org/materials/local_currencies_catalysts.pdffor an example.
For another interesting example, visit Second Life. The Linden Dollar has an exchange rate with the US Dollar (and other major currencies). See
http://secondlife.com/whatis/economy-market.phpSecond Life presents a particularly interesting example, because in principle you could follow every single transaction as a long running natural experiment. So far, the Second Life real estate market is healthy.