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RDP 2009-02: Competition Between Payment Systems
Equation (2)
Ω
c
=
Ω
0
c
∪
Ω
i
,
~
j
c
∪
Ω
j
,
~
i
c
∪
Ω
i
,
j
c
.
MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeuyQdC1aaW baaSqabeaacaWGJbaaaOGaeyypa0JaeuyQdC1aa0baaSqaaiaaicda aeaacaWGJbaaaOGaeyOkIGSaeuyQdC1aa0baaSqaaiaadMgacaGGSa GaaiOFaiaadQgaaeaacaWGJbaaaOGaeyOkIGSaeuyQdC1aa0baaSqa aiaadQgacaGGSaGaaiOFaiaadMgaaeaacaWGJbaaaOGaeyOkIGSaeu yQdC1aa0baaSqaaiaadMgacaGGSaGaamOAaaqaaiaadogaaaGccaGG Uaaaaa@5454@