?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Feprints.imtlucca.it%2F1625%2F&rft.title=R%26D%2C+Within+and+Between+Patent+Competition+in+the+Pharmaceutical+Industry&rft.creator=Magazzini%2C+Laura&rft.creator=Pammolli%2C+Fabio&rft.creator=Riccaboni%2C+Massimo&rft.subject=HB+Economic+Theory&rft.subject=RS+Pharmacy+and+materia+medica&rft.description=We+analyse+the+consequences+of+the+increasing+complexity+of+R%26D+on+within-+and+between-patent+competition+in+the+pharmaceutical+industry.+The+intensity+of+competition%0D%0Ais+measured+by+jointly+considering+the+timing+from+market+launch+to+patent+expiry%2C+the+strength+of+between-patent+competition+as+well+as+competition+introduced+by+generic%0D%0Aproducers.+A+simple+model+is+proposed+that+predicts+the+shrinking+of+product+lifetimes+in+the+presence+of+correlated+parallel+R%26D+projects+and+market+portfolios.+The+model+is+tested+using+data+on+pharmaceutical+products+sold+in+Europe+and+in+the+US.+Based+on+our+model+we+are+able+to+estimate+the+impact+of+R%26D+complexity+and+relatedness%0D%0Aamong+R%26D+portfolios+on+the+value+of+innovative+drugs.&rft.date=2013-07&rft.type=Working+Paper&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.identifier=http%3A%2F%2Feprints.imtlucca.it%2F1625%2F1%2FEIC_WP_3_2013.pdf&rft.identifier=++Magazzini%2C+Laura+and+Pammolli%2C+Fabio+and+Riccaboni%2C+Massimo++R%26D%2C+Within+and+Between+Patent+Competition+in+the+Pharmaceutical+Industry.++EIC+working+paper+series++%233%2F2013+++++ISSN+2279-6894.++++++