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- W2530482913 abstract "This paper examines trends in the aggregate productivity of the pharmaceutical sector over the past three decades. We incorporate Ricardo’s insight about demand-driven productivity in settings of variable scarce resources, and estimate the industry’s responsiveness to changes in demand over this timeframe using therapeutic class-specific data. In contrast to many analyses, our empirical estimates indicate that the industry has “met demand” with remarkable consistency since the late-1980s. The growth in total R&D spending, and therefore R&D costs per new drug, appear to have been profitable and productive investments. While we identify a significant increase in the industry’s fixed costs - the intercept of the production function - we find no decline in the marginal productivity of industry investments that might suggest significant supply-side frictions. While we cannot diagnose in detail why average, but not marginal, productivity declined, the data suggests that firms have finally begun to compete down returns from the supranormal levels of decades past.Institutional subscribers to the NBER working paper series, and residents of developing countries may download this paper without additional charge at www.nber.org." @default.
- W2530482913 created "2016-10-21" @default.
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- W2530482913 date "2016-10-01" @default.
- W2530482913 modified "2023-09-27" @default.
- W2530482913 title "A Ricardian-Demand Explanation for Changing Pharmaceutical R&D Productivity" @default.
- W2530482913 doi "https://doi.org/10.3386/w22720" @default.
- W2530482913 hasPublicationYear "2016" @default.
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