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 “Barriers to Entry and Exit in European Competition Policy” “Bargaining Over Fixed-to-Mobile Termination Rates: Countervailing Buyer Power as a Constraint on Monopoly Power” “Call Externalities, Network Effects and Market Power: The Orange/T-Mobile Merger” CREG Energy Market Panel: The Evolution of Electricity Market Regulation in Colombia CREG Energy Market Panel: The Evolution of Electricity Market Regulation in Colombia A comment on Ghang and Nowak’s “Indirect reciprocity with optional interactions”