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RDP 2009-02: Competition Between Payment Systems
Equation (24)
U
i
,
j
m
=
C
(
h
i
m
−
f
i
m
)
{
D
i
,
~
j
c
+
D
i
,
j
;
i
c
}
+
C
(
h
j
m
−
f
j
m
)
{
D
j
,
~
i
c
+
D
i
,
j
;
j
c
}
.
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