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Effective Patent Life in Pharmaceuticals

Grabowski, Henry G; Vernon, John (International Journal of Technology Management, 2000)

The Determinants of Pharmaceutical Research and Development Expenditures

Grabowski, Henry G; Vernon, John (Journal of Evolutionary Economics, 2000)

Innovation and Structural Change in Pharmaceuticals and Biotechnology

Grabowski, Henry G; Vernon, John (Industrial and Corporate Change, 1994)

A New Look at the Returns and Risks to Pharmaceutical R & D

Grabowski, Henry G; Vernon, John (Management Science, 1990-07)