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Travelers toured the world subsisting on bitcoins. Senate committee held hearings at which regulators commented favorably on Bitcoin and other virtual currencies. Bitcoin is not issued by a government or a business but by computer code that runs on a decentralized, voluntary network. Money is supposed to serve three purposes: Bitcoin arguably satisfies the first criterion, because a growing number of merchants accept it as payment.
But it performs poorly as a unit of account and a store of value. During its volatility was three to four times higher than that of a typical stock, and its exchange rate with the dollar was about 10 times more volatile than those of the euro, yen, and other major currencies. Nor does it correlate with the value of gold.
With a currency whose value is so untethered, it is nearly impossible to hedge against risk. Bitcoin also lacks additional characteristics usually associated with currencies. There is nothing comparable to the deposit insurance relied on by banking consumers. No lenders use bitcoins as the unit of account for consumer credit, auto loans, or mortgages, and no credit or debit cards are denominated in bitcoins.
Even if volatility subsides and the currency finds a place in the world payments system, it has another fatal economic flaw. Only 21 million units can ever be issued, and a fixed money supply is incompatible with a growing economy. In a bitcoin-dominated economy, workers would have to accept pay cuts every year, and prices for goods would gradually fall. A new prototype gets at how—and why—manufacturers and product designers might benefit from a blockchain.
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