Factor investing has been around for several decades, backed by an enormous body of literature, and yet it is still surrounded by much confusion and debate. Some of the rhetoric and myths have existed for a long time, while others have arisen in response to the difficult performance from 2018 to...

Standard risk management approaches fail to consider parameter uncertainty, which has led to improper risk management. Blind faith in parameter estimates has too often led to blind faith in the resulting VAR outputs, and when these estimates are too often exceeded the proposed solution is...

Managing risk successfully requires a detailed understanding of the distributions from which random shocks to asset prices are drawn. However, there is uncertainty in both the actual distribution of returns and the parameters characterizing the distribution. In this chapter, we focus on the...