Media type: E-Article Title: Import Quotas Foster Product Imitation in Vertically Differentiated Duopolies Contributor: Wauthy, Xavier; Boccard, Nicolas Published: Elsevier BV, 2001 Published in: SSRN Electronic Journal (2001) Language: English DOI: 10.2139/ssrn.267968 ISSN: 1556-5068 Keywords: Pharmacology (medical) Origination: Footnote: