?url_ver=Z39.88-2004&rft_id=10.1427%2F76114&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Altomonte%2C+Carlo&rft.aulast=Altomonte&rft.aufirst=Carlo&rft.date=April+2014&rft.atitle=Import+Penetration%2C+Intermediate+Inputs+and+Productivity%3A+Evidence+from+Italian+Firms&rft.title=Rivista+italiana+degli+economisti&rft.issue=1&rft.pages=45-66&rft.volume=55&rft.issn=1593-8662&rft.genre=article