Miguel Carrión Álvarez received a Ph.D. in mathematics at the University of California at Riverside and is now living in Spain. For a bit more see his old webpage.
After finishing his PhD he spent 4 years in London working in finance, and now is a risk analyst for a major Spanish bank.
He blogs regularly, mostly on macroeconomics and European politics, at European Tribune, a left-of-centre community blog founded by a prominent offshore-wind consultant.