00377pab a2200145 454500008004000000100001900040245005900059260000900118300001300127362000800140650001900148700001600167700001900183773002900202180718b2007   xxu||||| |||| 00| 0 eng d  aBloch, Francis  aReciprocity in groups and the limits to social capital  c2007  ap.65-69.  aMay  aSocial capital  aRay, Debraj  aGenicot, Garan  aAmerican Economic Review