This paper analyses the relationship between active management and performance in US equity mutual funds over the … period 2001-2011 for both gross and net returns. Mutual funds achieve nonzero abnormal performance through strategies that …-varying parameters, idiosyncratic risk and turnover. The results show a negative aggregate performance close to zero. Performance is …

to scale, we find evidence of industry-level decreasing returns: The positive turnover-performance relation weakens when …