TY - RPRT Y1 - 2013/01// A1 - Riccaboni, Massimo A1 - Schiavo, Stefano N2 - This paper develops a simple network model to describe the dynamic of the intensive and extensive margin of international trade flows. The result is achieved by means of the combination of two mechanisms of proportional growth: the first (discrete) determines the formation of trade links, the second (continuous) governs trade intensity. We show that our setup is able to simultaneously match a large number of empirical regularities, such as the fraction of zero trade flows across pairs of countries or the high concentration of trade with respect to both products and destinations. Our findings suggest that stylized facts are strongly interconnected across different levels of aggregation of trade data , so that a unifying explanation is called for. By incorporating stochastic elements into standard trade models we can improve their ability to explain relevant facts about world trade. TI - Stochastic Trade Networks ID - eprints1461 SN - 2279-6894 AV - public M1 - imt_eic_working_paper EP - 29 UR - http://eprints.imtlucca.it/1461/ PB - IMT Institute for Advanced Studies Lucca KW - JEL Codes: F14 KW - F43 KW - O25 ER -