Longitudinal Analysis of Generic Substitution
AbstractUsing an extensive longitudinal dataset extracted from the Norwegian Prescription Database (NorPD) containing all prescriptions written in the period January 2004 to June 2007, we selected two particular drugs (chemical substances) used against cholesterol. The two brand-name products on the Norwegian markets were Provachol (atc code C10AA03) and Zocor (atc code C10AA01). The generics are Provastatine and Simastatine. The model accounts for taste persistence and is estimated on panel data. 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.
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Bibliographic InfoPaper provided by CESifo Group Munich in its series CESifo Working Paper Series with number 3176.
Date of creation: 2010
Date of revision:
generics; substitution; microdata; random utility model; longitudinal data;
Other versions of this item:
- Dalen Dag Morten & Strom Steinar & Locatelli Marilena, 2010. "Longitudinal analysis of generic substitution," Department of Economics and Statistics Cognetti de Martiis. Working Papers 201013, University of Turin.
- C35 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Discrete Regression and Qualitative Choice Models; Discrete Regressors; Proportions
- I18 - Health, Education, and Welfare - - Health - - - Government Policy; Regulation; Public Health
- L65 - Industrial Organization - - Industry Studies: Manufacturing - - - Chemicals; Rubber; Drugs; Biotechnology
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- May Elsayyad & Kai A. Konrad, 2010.
"Fighting Multiple Tax Havens,"
CESifo Working Paper Series
3195, CESifo Group Munich.
- Elsayyad, May & Konrad, Kai A., 2012. "Fighting Multiple Tax Havens," Munich Reprints in Economics 13964, University of Munich, Department of Economics.
- May Elsayyad & Kai A. Konrad, 2011. "Fighting Multiple Tax Havens," Working Papers fighting_multiple_tax_hav, Max Planck Institute for Tax Law and Public Finance.
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