Smith, Alexander - In: Games 4 (2013) 3, pp. 367-374
literature defines a “reciprocity effect” as the tendency for Second Movers to return proportions increasing in the amounts that … they receive. In the data that I use, 31% of Second Movers show reciprocity effects, 31% are neutral, and 25% consistently … free-ride, indicating that the aggregate reciprocity effect for the sample as a whole is attributable to a minority of the …