"You can’t charge what something is worth during a pandemic. So we estimated that the value of one course of COVID vaccine in January 2021 was over $5,000. They were selling for between $6 and $40. So nothing like their social value. Now, don’t get me wrong. I don’t think that they should have charged $5,000 or $6,000.

No conversation about social impact is complete without an understanding of randomized control trials, or RCTs. In this episode, we delve into what they are and how they measure impact with Rachel Glennerster, the new chief economist at the Department for International Development (DFID) in the UK. In an episode record