In a recent paper, García-Mainar and Montuenga-Gómez (2005) apply the generalized IV model of Hausman and Taylor to estimate education returns of wage earners and the self-employed in Portugal and in Spain. Our examination reveals several problems which relate to the validity and documentation...

In a recent paper, García-Mainar and Montuenga-Gómez (2005) apply the generalized IV model of Hausman and Taylor to estimate education returns of wage earners and the self-employed in Portugal and in Spain. Our examination reveals several problems which relate to the validity and documentation...

Since the sinking of the Titanic, there has been a widespread belief that the social norm of 'women and children first' gives women a survival advantage over men in maritime disasters, and that captains and crew give priority to passengers. We analyze a database of 18 maritime disasters spanning...