Show that the modified factor model with E[F q ] = ?F q , Cov[F p ,
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Show that the modified factor model
with E[Fq] = ?Fq, Cov[Fp, Fq] = ?pq, Cov [Fq, ?n] = 0, E [?n] = 0, AND COV [?m , ?n]= ?mn?2n, generates the correct APT-equation (7.57).
(7.57)
Transcribed Image Text:
|R) = R [1) -A|11) + A|F) + le), Hs = r + 2As.4(UF, – r) q=1
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The modified factor model can be written as Rp Ro 1 A1Rp AFp ep w...View the full answer
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