Earnings to Price Analysis with mOpt versus Bisquare Robust Regression
Earnings to Price Analysis with mOpt versus Bisquare Robust Regression
Recently Martin, Guerard, and Xia [1] used a new optimal bias robust regression estimator, called the mOpt estimator, in Fama-MacBeth cross-section regressions to study the statistical significance of the earnings-to-price (EP) and book-tp-price (BP) factors, among others. An earlier study by Markowitz et al. [2], and a number of studies …