0.37 Frank R. Lichtenberg Tomas J. Philipson, The Dual Effects of Intellectual Property Regulations: Within‐ and Between‐Patent Competition in the US Pharmaceuticals Industry, Journal of Law and Economics, 2002.

{ drug product pharmaceutical generic }	0.37
{ percent data table effect }	0.18
{ patent case litigation plaintiff }	0.09
{ rate year change period }	0.07

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