Notes, Comments and Preliminary results Jul 28 2005 Lawrence Dacuycuy   Is the earnings-schooling relationship linear? a semiparametric analysis   Abstract  Contact Information  Citation  Full Text  -  Note   May 02 2005 Lawrence Dacuycuy   A note on the comparative performance of the Zheng and Elisson-Elisson tests for omitted variables in regression models   Abstract  Contact Information  Citation  Full Text  -  Note   Mar 01 2005 Lawrence Dacuycuy   On distribution approximation: a simple comparative study on procedural variations of the Zheng test   Abstract  Contact Information  Citation  Full Text  -  Note