Christi,
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Here is the paper  you wanted.
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All,
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This excellent and  easy to read paper makes a good argument as to why 
continuously clearing markets  are more efficient than single price 
(ISO/PX-like) regimes.? I've already  sent a few of you hardcopy, but Christi 
and I thought it would be good for all  to read.
?
Scott
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?
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 - In Defense of Multiple Markets.pdf