FILE - In this Sept. 21, 2011 file photo, a trader at the CME Group signals in the S&P 500 Futures pit in Chicago. Most states are doing a poor job tracking whether their tax breaks for businesses are... more 
FILE - In this Sept. 21, 2011 file photo, a trader at the CME Group signals in the S&P 500 Futures pit in Chicago. Most states are doing a poor job tracking whether their tax breaks for businesses are actually spurring job growth, including some that have poured hundreds of millions of dollars into corporate incentive programs even while grappling with record deficits, according to a new report released Thursday, April 12, 2012 by the Pew Center on the States. Late last year Illinois agreed to a package of $330 million in tax breaks for Sears Holding Corp. and two companies that operate Chicago financial exchanges, CME Group Inc. and CBOE Holdings Inc., after they threatened to leave the state. (AP Photo/M. Spencer Green, File) less 
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Associated Press | Photo By M. Spencer Green, File
Thu, Apr 12, 2012 1:14 AM EDT