abstract = "The mechanisms/abilities of agents compared to the
emergent outcomes in three different scenarios from my
past work is summarised: the El Farol Game; an
Artificial Stock Market; and the Iterated Prisoners
Dilemma. Within each of these, the presence or absence
of some different agent abilities was examined, the
results being summarised here, some turning out to be
necessary, some not. The ability in terms of the
recognition of other agents, either by characteristics
or by name is a recurring theme. Some of the
difficulties in reaching a systematic understanding of
these connections is briefly discussed.",