We discuss statistical inference problems associated with identification and testability in econometrics, and we emphasize the common nature of the two issues. After reviewing the relevant statistical notions, we consider in turn inference in nonparametric models and recent developments on...

This paper presents an analysis of the relationship between innovation, productivity and exports regarding the SMEs. The main research aim of this study consists in analyzing the hypothesis of firms’ conscious self-selection in the export markets. To measure innovation, we consider the...