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A growing chorus of large industrial power users, municipal utilities and consumer groups say there is a reason the price of electricity has not fallen since the federal government opened the heavily regulated utility industry to competition a decade ago. The new markets, they argue, do not work right.
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For one thing, when electricity producers offer to supply power for use the next day, utilities pay everyone the highest price accepted. One study in Texas, where electricity bills have been rising sharply, found that because of this auction system, consumers pay a lot more than they would have under the old system where the state regulated prices.
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“My studies show it is easy to learn from the signals given by others how to get the benefits of colluding without breaking the law,” Professor Talukdar said.
“Economists have this faith in markets,
this blind faith that markets are always a good thing,” the professor said, “but the design of markets matters a great deal and the design must be verified to see if it really works as a free market.”
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http://www.nytimes.com/2006/11/21/business/21utility.html