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Title:The effects of reference pricing on ex-factory prices of Rx drugs in Germany : a panel data approach PDF Logo
Authors:Augurzky, Boris
Göhlmann, Silja
Greß, Stefan
Wasem, Jürgen
Issue Date:2006
Series/Report no.:RWI Discussion Papers 46
Abstract:This paper examines effects of reference pricing for prescription drugs in German social health insurance based on econometric panel data methods. We analyze the effect on ex-factory prices. Moreover, we investigate whether manufacturers adapt prices of their products not subject to reference pricing as a consequence of changes in reference prices of their products subject to reference pricing.We use a large panel data set of nearly all German prescription drugs on a monthly basis between October 1994 and July 2005. Altogether, the data comprise almost 4 million observations. They provide information on ex-factory prices, reference prices, manufacturers, type of prescription drug, and market entries and exits. Our results show that there is no full price adjustment:A 1%-change in reference prices leads to a 0.3%-change in market prices. Price adjustment, however, is fast, it mostly happens in the first month. Furthermore, the first introduction of a reference price reduces market prices of the affected products by approximately 14%. Finally, we observe a significant time effect which is positive in the market without reference prices and negative in that with reference price.
Subjects:Price elasticity
temporal development
fixed effects model
JEL:I11
I18
Document Type:Working Paper
Appears in Collections:RWI Discussion Papers
Publikationen von Forscherinnen und Forschern des RWI

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