The Measurement of Pharmaceutical Innovation

Patent Statistics as a Measure of Technical Change

William S. Comanor, F. M. Scherer · Journal of Political Economy · 1969 · 354 citations

Management, Innovation Management, Technology Management +14

Issues in Pharmaceutical Economics

Henry B. Steele, Robert Chien · Southern Economic Journal · 1980 · 120 citations

Social Sciences, Economics, Pharmaceutical Policy +9

Introduction of new therapeutic drugs in the United States and Great Britain: An international comparison

William M. Wardell · Clinical Pharmacology & Therapeutics · 1973 · 100 citations

Medicine, Pharmacology, Clinical Pharmacology +12

The drug lag revisited: Comparison by therapeutic area of patterns of drugs marketed in the United States and Great Britain from 1972 through 1976

William M. Wardell · Clinical Pharmacology & Therapeutics · 1978 · 56 citations

Pharmacy, Pharmaceutical Policy, Clinical Pharmacology +12

The rate of development of new drugs in the United States, 1963 through 1975

William M. Wardell, Mohammed Hassar, S. N. Anavekar · Clinical Pharmacology & Therapeutics · 1978 · 32 citations

Pharmacy, Pharmaceutical Policy, Drug Approval Processes +6