RDP 2009-02: Competition Between Payment Systems
Equation (14)
Π
j
=
C
M
{
[
(
f
j
c
,
*
−
g
j
*
)
+
(
f
j
m
−
c
j
)
]
D
j
c
D
j
m
−
(
f
j
m
−
c
j
)
D
i
,
j
;
i
c
D
i
,
j
m
}
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