Auctions have provided a fruitful area for combining economic theory with econometric analysis in order to understand behavior and inform policy. Early work by Hendricks and Porter (1988) and others made important contributions by testing the empirical implications of auction theory. This work provided convincing evidence of the empirical relevance of private information and confirmed the value...

In this work, we consider statistical diagnostic for general transformation models with right censored data based on empirical likelihood. The models are a class of flexible semiparametric survival models and include many popular survival models as their special cases. Based on empirical likelihood methodologe, we define some diagnostic statistics. Through some simulation studies, we show that ...

Shear wave velocity (Vs) data are key information for petrophysical, geophysical and geomechanical studies. Although compressional wave velocity (Vp) measurements exist in almost all wells, shear wave velocity is not recorded for most of elderly wells due to lack of technologic tools. Furthermore, measurement of shear wave velocity is to some extent costly. This study proposes a novel methodolo...