Research Fellow @ UCL
31 karmaJoined Working (0-5 years)


Research scientist looking at quantum sensing for biomedical applications.


Proposing small correction to this article: footnote 9 states “it isn’t more important to help someone living on $200 per year (at official exchange rates) in a place where PPP [purchasing power parity] is high than someone on the same amount where PPP is low”. 

This isn’t right; purchasing power doesn’t matter if the elasticity parameter , but it does matter if  (so in particular, the estimates in the article for  are only correct for comparing contexts with equal purchasing power). We have expanded on this in "Correction to “The Value of Money Going to Different Groups”.