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Research and market structure: evidence from an antibiotic-resistant pathogenic outbreak
journal contributionposted on 2023-06-10, 04:48 authored by Mayank Aggarwal, Anindya Chakrabarti, Chirantan ChatterjeeChirantan Chatterjee, Matthew J Higgins
Do upstream research shocks impact unconnected downstream product markets? We explore this question using a natural experiment involving a publication that identified a pathogenic outbreak in India involving a carbapenem antibiotic resistant superbug. Consistent with theory, we find that this upstream research shock caused multinational firms selling carbapenem antibiotics in India to reduce their downstream market exposure. Rational antibiotic stewardship implies that we should observe a similar response by domestic Indian firms. Surprisingly, we observe the opposite; domestic Indian firms filled the void in the market left by multinational firms. We confirm this aggregate finding with prescription level data, Indian physicians prescribed fewer focal multinational products relative to domestic firm products. Results are robust to alternate control groups and placebo testing. Implications for antibiotic resistance, global health policy and innovation policy are discussed.
- Accepted version
Department affiliated with
- SPRU - Science Policy Research Unit Publications
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