Adjusting for Beta Bias: An Assessment of Alternate Techniques: A Note
测试了五种技术（Scholes-Williams、Dimson等）对薄交易和价格调整延迟导致的贝塔估计偏差的控制效果，发现最佳情况下偏差仅减少29%。
ABSTRACT This paper tests the effectiveness of techniques proposed by: Scholes‐Williams; Dimson; Fowler, Rorke, and Jog; and Cohen, Hawawini, Maier, Schwartz, and Whitcomb to control for bias in beta estimates from thin trading and price adjustment delays. Each technique produces beta estimates that reduce the amount of this bias, but the amount of reduction in the best case is only 29%.