Jonathan Perraton obituary

My friend Jonathan Perraton, who has died aged 58 of a heart attack, was a senior lecturer and post-Keynesian economist with an internationalist outlook. Publishing extensively across a range of economics journals, he famously identified strong and weak versions of Thirlwall's law, pivotal to the literature on the constraints placed on low-income countries by export demand.

He was a long-serving and well-regarded member of the economics department at the University of Sheffield, and a rep for the University and College Union. He taught international economics to a generation of students, for whom he was a wonderfully inspiring lecturer.