A multivariate positive definite estimator of the integrated covariance matrix of noisy and asynchronously observed asset returns is proposed. We adopt a Bayesian Dynamic Linear Model where microstructure noise is interpreted as measurement error, and asynchronous trading as missing observations in an otherwise synchronous series. Missing observations are treated as any other parameter, as typ…

Managing Value-Based Organizations argues that those who fail to understand management history are destined to repeat it. Research has shown that despite the prodigious output of management books, managers still have little idea why there is so much change in the world of work or what they can do about it. Most, it seems, are still waiting for the dust to settle, expecting instead that in the n…