Estimating the conditional quantiles of outcome variables of interest is frequent in many research areas, and quantile regression is foremost among the utilized methods. The coefficients of a quantile ...

This is a preview. Log in through your library . Abstract Malmquist indexes of productivity are generally estimated using index number techniques or non-parametric frontier approaches. The aim of this ...

WolframAlpha has compiled a growing list of portraits of iconic figures drawn by parametric functions. Some of them are surprisingly good – though, as Joe Hanson points out, there’s a decent chance ...