By applying the concept of “information ratio” to data published in The 2014 Berkshire Hathaway's Annual Report, this work discuss with quantitative data and equations Warren Buffett's management strategy and financial accomplishment at Berkshire Hathaway. Furthermore, a combined analysis of...

Good market timing skills can be an important factor contributing to hedge funds' out-performance. In this paper we use a unique semi-parametric panel data model capable of providing consistent short period estimates of the return correlations with three market factors for a sample of Long/Short...