Importation and innovation
By: Frank R. Lichtenberg.
Contributors: National Bureau of Economic Research.
Series: NBER working paper series -- no. 12539.; Working paper series (National Bureau of Economic Research) -- working paper no. 12539.
Publisher: National Bureau of Economic Research
Published: 2006
Place of publication: Cambridge, Mass
Language: eng
Number of pages: 18
Subjects: Pharmaceutical industry -- Prices -- United States; Pharmaceutical industry -- Technological innovations -- United States -- Econometric models; Imports -- United States
Notes: "September 2006."

Includes bibliographical references.

Also available in PDF from the NBER World Wide Web site (www.nber.org).