Portfolio management using realized covariances: Evidence from Brazil

It is often argued that intraday returns can be used to construct covariance estimates that are more accurate than those based on daily returns. However, it is still unclear whether high frequency data provide more precise covariance estimates in markets more contaminated from microstructure noise s...

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Bibliographic Details
Main Authors: João F. Caldeira, Guilherme V. Moura, Marcelo S. Perlin, André A.P. Santos
Format: Article
Language:English
Published: Emerald Publishing 2017-09-01
Series:EconomiA
Online Access:http://www.sciencedirect.com/science/article/pii/S1517758017300395