Laurans A. and Arlene Mendleson Professor of Economics, Columbia University

VoxEU Column
The simple economics of an external shock on a crowdsourced ‘bug bounty’ platform
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- COVID-19 
- Labour Markets & Migration

VoxEU Column
A new approach to quantifying, reducing, and insuring cyber risk: Preliminary analysis and proposal for further research
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- Frontiers of economic research
VoxEU Column
Competitive effects of PC software bundling
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- Competition Policy 
- Industrial organisation