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Longitudinal Analysis of Generic Substitution

Marilena Locatelli () and Steinar Strøm ()

Atlantic Economic Journal, 2015, vol. 43, issue 3, 363-374

Abstract: Using an extensive longitudinal dataset extracted from the Norwegian Prescription Database (NorPD), Norwegian title: Reseptregisteret, from the Norwegian Institute of Public Health ( NIPH ) containing all prescriptions written in the period May 2004 to June 2007, we selected two particular drugs (chemical substances) used against cholesterol. The two brand-name products on the Norwegian markets are Provachol (Anatomic Therapeutic Chemical (ATC) classification code C10AA03) and Zocor (ATC code C10AA01). The generics are Provastatine and Simastatine. We find that prices have a negative impact on transitions in the sense that an increase in the brand price will reduce the transition from generics to brand and likewise an increase in the generic price will reduce the transition from brand to generics. Moreover, we find that the older a male doctor is, the more likely it is that he continues to prescribe the brand-name product. Copyright International Atlantic Economic Society 2015

Keywords: Generics; Substitution; Microdata; Random utility model; Longitudinal data; C35; I 18; L 65 (search for similar items in EconPapers)
Date: 2015
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Working Paper: Longitudinal Analysis of Generic Substitution (2010) Downloads
Working Paper: Longitudinal analysis of generic substitution (2010) Downloads
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DOI: 10.1007/s11293-015-9462-6

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