Headline: New GAO Study Focuses on Make-Believe Tax ExpendituresLink: http://finance.townhall.com/columnists/danieljmitchell/2013/04/17/new-gao-study-…Publication Date: Wednesday, April 17, 2013Primary Source: TownhallType: new media postFormat: New MediaNature of Mention: authoredScholar: Mitchell, Daniel J.Research Area: Tax and Budget PolicySubjects: corporate tax reform