Undoing the pretzel logic of finance

My latest column in Bloomberg came out a few days ago. The article looks at some recent work of young MIT economist Alp Simsek that consid...

Networks in finance

Just over a week ago, the journal Nature Physics published an unusual issue. In addition to the standard papers on technical physics topics...

Why diversification doesn't work

You're standing in your canoe, on a beautiful Canadian lake, taking photos of the wildlife, occasionally fishing. Why standing, not sitt...