We evaluate the performance of limited partners' (LPs) private equity investments over time. Using a sample of 14,380 investments by 1,852 LPs in 1,250 buyout and venture funds started between 1991 and 2006, we find that the superior performance of endowment investors in the 1991-1998 period,...

"We develop a new GMM-style methodology with good small-sample properties to assess the abnormal performance and risk exposure of a non-traded asset from a cross-section of cash flow data. We apply this method to a sample of 958 mature private equity funds spanning 24 years. Our methodology uses...