<documents><document order_code="RL34155" release_date="2007-09-04" date_added="2007-09-04"><title>Income Inequality and the U.S. Tax System</title><abstract_url>http://opencrs.com/document/RL34155/2007-09-04/</abstract_url><locations><location url="http://assets.opencrs.com/rpts/RL34155_20070904.pdf" /></locations><legislation></legislation></document></documents>