RDP 2009-03: Competition Between Payment Systems: Results Equation (C4)

f j c , # # # ≡ f j c , * + ( f i c , # − f i c , * ) . MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamOzamaaDa aaleaacaWGQbaabaGaam4yaiaacYcacaGGJaGaai4iaiaacocaaaGc cqGHHjIUcaWGMbWaa0baaSqaaiaadQgaaeaacaWGJbGaaiilaiaacQ caaaGccqGHRaWkdaqadaqaaiaadAgadaqhaaWcbaGaamyAaaqaaiaa dogacaGGSaGaai4iaaaakiabgkHiTiaadAgadaqhaaWcbaGaamyAaa qaaiaadogacaGGSaGaaiOkaaaaaOGaayjkaiaawMcaaiaac6caaaa@4E63@