The Effect of GDP Growth on Pharmaceutical Patent Protection, 1945-2005

Sumner La Croix and Ming Liu

Brussels Economic Review, 2009, vol. 52, issue 3/4, 355-375

Abstract: We investigate whether there is a U-shaped relationship between GDP per capita and country patent protection for pharmaceuticals. Using the Pharmaceutical Intellectual Property Protection (PIPP) Index, we find no evidence of a U-shaped relationship for any of the 154 countries in our sample or for global aggregates. There is, however, evidence for a U-shaped relationship in some annual cross-section scatter plots and Tobit regressions. Using a random-effects Tobit estimator and cubic as well as quadratic GDP per capita variables, we find evidence both for and against a monotonically increasing relationship between GDP and the predicted PIPP Index.

Keywords: Patents; Pharmaceuticals; PIPP Index; GDP (search for similar items in EconPapers)
JEL-codes: L65 O14 O34 (search for similar items in EconPapers)
Date: 2009
Note: Numéro Spécial « Vers une nouvelle histoire économique des brevets ?» Editeurs :Claude Diebolt et Karine Pellier
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