Sample zeros---products available that do not register positive revenues due to the finite sample period---introduce several biases in the computation of the import price index developed by Feenstra (1994). We model sample zeros by considering the discrete choice model of Anderson, De Palma and...

We present a theory of individual choice in which the decisionmaker focuses more on, and hence weights more heavily, attributes on which the options in her consideration set are more different. Consistent with evidence on salience in monetary choices, our model predicts that the decisionmaker is...