RDP 2009-02: Competition Between Payment Systems Equation (17)

U j , ~ i c = M h j c D j m f j c = M { h j c D j m f j c / M } MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamyvamaaDa aaleaacaWGQbGaaiilaiaac6hacaWGPbaabaGaam4yaaaakiabg2da 9iaad2eacaWGObWaa0baaSqaaiaadQgaaeaacaWGJbaaaOGaamiram aaDaaaleaacaWGQbaabaGaamyBaaaakiabgkHiTiaadAgadaqhaaWc baGaamOAaaqaaiaadogaaaGccqGH9aqpcaWGnbWaaiWaaeaacaWGOb Waa0baaSqaaiaadQgaaeaacaWGJbaaaOGaamiramaaDaaaleaacaWG QbaabaGaamyBaaaakiabgkHiTiaadAgadaqhaaWcbaGaamOAaaqaai aadogaaaGccaGGVaGaamytaaGaay5Eaiaaw2haaaaa@5668@