recently, anderson has focused on the analysis of investment strategies, and his work relies on both theoretical considerations and empirical analysis. in an article published in the "financial analysts journal" in 2012 and cited below, anderson, bianchi and goldberg found that long-term returns to risk parity strategies, which have acquired tens of billions of dollars in assets under management in the wake of the global financial crisis, are not materially different from the returns to more transparent strategies once realistic financing and trading costs are taken into account; they do well in some periods and poorly in others. a subsequent investigation by the same research team found that returns to dynamically levered strategies such as risk parity are highly unpredictable due to high sensitivity of strategy performance to a key risk factor: the co-movement of leverage with return to the underlying portfolio that is levered.