00460nam a22001577a 450000500170000000800410001704000090005804100120006710000210007924500490010026000580014930000170020744000460022465000140027070000180028420240318154414.0240318b        |||||||| |||| 00| 0 eng d  aMAIN  aEnglish  aBernstein, Shai   aContracting with Heterogeneous Externalities  aPittsburgh, PA bAmerican Economic Association c2012  a50-76bBJ173  aAmerican Economic Journal: Microeconomics  aEconomics  aWinter, Eyal