Defence spending is rising whether voters like it or not. The UK has committed to 2.5% of national income and aims for nearer 3.5% over the next decade, GBP30bn a year for each percentage point. What does the country get back? Can defence spending be pro-growth? In this week's VoxTalk, John Van Reenen (LSE) argues that getting a return on investment based on innovation need not be left to luck. For example nuclear power, GPS and the internet all began as military projects. The spillovers can be planned for; the trick is to make defence spending innovation-rich, and make procurement work better. Traditional top-down procurement mostly produces lock-in: the same firms winning over and over. Van Reenen's study of a project at the US Air Force shows the difference: when it asked firms what they could build, rather than telling them what to make, the competitions brought in startups, generated more original patents, and spilled ideas into the civilian economy.
John Van Reenen
19 June 2026
VoxTalk (podcast)
https://cepr.org/multimedia/making-defence-spending-pay
This work is published under POID and the CEP's Growth programme.
This publication comes under the following CEP theme: Innovation drivers