RDP 2009-02: Competition Between Payment Systems
Equation (13)
Π
i
=
C
M
{
[
(
f
i
c
,
*
−
g
i
*
)
+
(
f
i
m
−
c
i
)
]
D
i
c
D
i
m
−
(
f
i
m
−
c
i
)
D
i
,
j
;
j
c
D
i
,
j
m
}
.
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