Crivelli, Pramila; Gröschl, Jasmin - Institut d'Economie et Econométrie, Université de Genève - 2012
In an attempt to disentangle the impact of sanitary and phytosanitary (SPS) measures on trade patterns, we estimate a Heckman selection model on the HS4 disaggregated level of trade. We find that aggregated SPS measures constitute barriers to agricultural and food trade consistently to all...