Last year at about this time I gave a presentation on reciprocity to a conference at the University of Virginia’s School of Law on the 50th anniversary of Rawls’s A Theory of Justice. I’ve just found that recordings of all the talks are available online. My session is here (after the intro from Blain Neufeld):
The talk was called “Conditional vs. Unconditional in Justice as Fairness” and was based on a revised version of a paper I presented to the earlier conference “Héritage et usages de Rawls: Théorie de la justice 50 ans après“.
Full details of the UVA conference plus links to other sessions here: https://www.law.virginia.edu/news/event/1411651