This Working Paper reviews issues related to research access to patented inventions, with a particular focus on the role of research exemptions (or experimental use exemptions) in protecting such access. It outlines factors that may affect the ability of researchers to access patented inventions...

This Working Paper reviews issues related to research access to patented inventions, with a particular focus on the role of research exemptions (or experimental use exemptions) in protecting such access. It outlines factors that may affect the ability of researchers to access patented inventions...

Since little is known about the degree of bias in estimated fixed effects in panel data models, we run Monte Carlo simulations on a range of different estimators. We find that Anderson-Hsiao IV, Kiviet's bias-corrected LSDV and GMM estimators all perform well in both short and long panels....