Template-Type: ReDIF-Paper 1.0 Title: Comparing nonparametric versus regression fits Author-Name: Haerdle,W. Author-Name: Mammen,E. Author-WorkPlace-Name: University of Bonn Classification-JEL: 211 Keywords: Regression models,Parametric and nonparametric approach, Wild bootstrap,Engel curves Series: Sonderforschungsbereich 303 Creation-Date: 1988-07 Handle: RePEc:bon:bonsfa:177