by David Harbord and Nils-Henrik von der Fehr, 24 July 2016. Posted byDavid Harbord July 25, 2016 0 Share: Comment on Ghang and Nowak’s “Indirect reciprocity with optional interactions”&body=https://www.market-analysis.co.uk/comment-on-ghang-and-nowak-indirect-reciprocity-with-optional-interactions-2/" title="Share by Email"> Related Articles “The BAT/Protabaco Merger: Unilateral Effects, Tacit Collusion and Multimarket Oligopoly” “Designing Electricity Auctions: Uniform, Discriminatory and Vickrey” “Football Trials” “Contracts and Competition in the Pay-TV Market” CREG Energy Market Panel: The Evolution of Electricity Market Regulation in Colombia A comment on Ghang and Nowak’s “Indirect reciprocity with optional interactions”