?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Feprints.imtlucca.it%2F1658%2F&rft.title=Missing+Links+in+Multiple+Trade+Networks&rft.creator=Foschi%2C+Rachele&rft.creator=Riccaboni%2C+Massimo&rft.creator=Schiavo%2C+Stefano&rft.subject=HB+Economic+Theory&rft.subject=HF+Commerce&rft.description=In+this+paper+we+develop+a+network+model+of+international+trade+which+is+able+to+replicate+the+concentrated+and+sparse+nature+of+trade+data.+Our+model+extends+the+preferential+attachment+(PA)+growth+model+to+the+case+of+multiple+networks.+Countries+trade+a+variety+of+goods+of%0D%0Adifferent+complexity.+Every+country+progressively+evolves+from+trading+less+sophisticated+to+high-tech+goods.+The+probability+to+capture+more+trade+opportunities+at+a+given+level+of+complexity+and+to+start+trading+more+complex+goods+are+both+proportional+to+the+number+of+existing+trade+links.+We+provide+a+set+of+theoretical+predictions+and+simulative+results.+A+calibration+exercise+shows+that+our+model+replicates+the+same+concentration+level+of+world+trade+as+well+as+the+sparsity+pattern+of+the+trade+matrix.+Moreover%2C+we+find+a+lower+bound+for+the+share+of+genuine+missing+trade+links.+We+also+discuss+a+set+of+numerical%0D%0Asolutions+to+deal+with+large+multiple+networks.&rft.publisher=IMT+Institute+for+Advanced+Studies+Lucca&rft.date=2013-09&rft.type=Working+Paper&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.identifier=http%3A%2F%2Feprints.imtlucca.it%2F1658%2F1%2FEIC_WP_5_2013.pdf&rft.identifier=++Foschi%2C+Rachele+and+Riccaboni%2C+Massimo+and+Schiavo%2C+Stefano++Missing+Links+in+Multiple+Trade+Networks.++EIC+working+paper+series++%235%2F2013++++IMT+Institute+for+Advanced+Studies+Lucca++++ISSN+2279-6894.++++++