Bulletin – December 2017
Equation
min
w
i
¯
∑
t
T
∑
i
=
1
8
(
w
i
¯
π
i
,
t
−
π
t
)
2
,
subject
to
the
constraints
∑
i
=
1
8
w
i
¯
=
1
and
w
i
¯
≥
0.
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