00329pab a2200133 454500008004000000100002200040245004200062260000900104300001400113362000800127650001300135700001800148773002900166180718b2006   xxu||||| |||| 00| 0 eng d  aKopczuk, Wojciech  aPutting firms into optimal tax theory  c2006  ap.130-34.  aMay  aTaxation  aSlemrod, Joel  aAmerican Economic Review