Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. In 2000, while working at JPMorgan Chase, Li published a paper in The Journal of ...

MacKenzie is a very smart sociologist, who understands quants and copula functions much more deeply than I ever did. (And, like most journalists, I forgot nearly all of what I ever knew about them ...

Hollenbach, F.M., I. Bojinov, S. Minhas, N.W. Metternich, M.D. Ward, and A. Volfovsky. "Multiple Imputation Using Gaussian Copulas." Special Issue on New Quantitative ...

It should not be too hard for leaders to embrace and communicate uncertainty, as Ravi Gurumurthy suggests (Opinion, December 31). With current IT, powerful visualisations can easily be produced which ...

In this paper we consider the large homogeneous portfolio (LHP) approximation with a two-factor Gaussian copula and random recovery rate. In addition, we assume that the earlier the default occurs, ...

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter. Never were truer words spoken of a mathematical formula. Out on Friday — some über-Geeky weekend reading for ...

Several economic blogs have pointed me to this excellent article by Felix Salmon in Wired on the Gaussian copula devised by mathematician David X. Li in 2000. This was a mathematical formula to ...

In addition to “classical” approaches, such as the Gaussian CreditMetrics or Basel II model, the use of other copulas has recently been proposed in the area of credit risk for modeling loss ...

QUANT models and their architects are so misunderstood, often by people working in finance. It pains me, though I am biased. I spent the better part of a decade devoted to studying elegant (and ...