Over the ROC methodology: Productivity, economic size and firms’ export thresholds

Stefano Costa, Federico Sallusti, Claudio Vicarelli and Davide Zurlo

Review of International Economics, 2019, vol. 27, issue 3, 955-980

Abstract: We identify the minimum combinations of productivity and “economic size” that Italian manufacturing firms need to achieve in order to access international markets. These “export thresholds” are estimated by applying, for the first time in economics, the ROC (receiver operating characteristics) methodology. In this way, we detect a model‐based (rather than a subjectively determined) cut‐off that allows to identify exporters and nonexporters and provides a measure of each firm’s distance from the export threshold. This methodology also paves the way to investigate other determinants of thresholds, thus helping to design more effective policy interventions to reduce barriers to trade.

Date: 2019
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