Suppose estimates are available for correlations between pairs of variables but that the matrix of correlation estimates is not positive definite. In various applications, having a valid correlation ...

Testing correlation structures has attracted extensive attention in the literature due to both its importance in real applications and several major theoretical challenges. The aim of this paper is to ...

John Edwards is a licensed attorney with experience in commodities and investments. He provides performance analysis of hedge funds and investors. Suzanne is a content marketer, writer, and ...