Traditionally, the main source of data used to measure countries’ participation in international production networks or global value chains (GVCs) has been conventional international trade statistics. However, international fragmentation of production has weakened the analytic interpretability...

Using a detailed database on intra-MERCOSUR tariffs, we estimate the effect of tariff preferences on the origin of imports of MERCOSUR members. The results show tariff preferences affected imports patterns in the cases of Argentina and Uruguay, and to a less extent also those of Brazil. For the...