000 00401pab a2200169 454500
008 180718b2011 xxu||||| |||| 00| 0 eng d
100 _aShy, Oz
245 _aWhy do payment card networks charge proportional fees?
260 _c2011
300 _ap.1575-1590.
362 _aJul
650 _aBanks
700 _aWang, Zhu
773 _aAmerican Economic Review
908 _aN
909 _a93052
999 _c93052
_d93052