For this remarkable sharpness, not only the reduced kerbweight goes a long way, but also the perfect ratio distribution of 50/50 %. (mercedesblog.com)
It consists of the superposition of the planet and BD companion mass distributions, assuming that we can extrapolate the RV measured companion mass function for planets to larger separations and the stellar companion mass - ratio distribution over all separations into the BD mass regime. (arxiv.org)
Using structural alpha instead of the in - sample fit intercept should make the model less sensitive to trending valuations in the period of model calibration and to valuation ratio distribution uncertainty. (researchaffiliates.com)