Whereas in the two experiments conditional cooperators who cooperated in the previous action cooperate more the more neighbors cooperate, it is quite the opposite in the control experiment.
Donaghy was the only defendant who cooperated with the federal authorities, although the government has played down his cooperation.
The Taliban threatened to punish local men who cooperated with Americans.
The attackers, who cooperated with the prosecution, have yet to be sentenced.
Mr. Giuliani also cut generous deals with those who cooperated with him.
"The Taliban went looking for families who cooperated with the government or international organisations.
Two men from the mainland who cooperated with him were also sentenced today.
He was a victim of the closet who cooperated with its enforcers.
"There were many people who cooperated with the organs [of state security].
North Korea has accused people who cooperated with the commission of inquiry of lying.
The 17-count indictment was peppered with John Does, many of them anonymous victims who cooperated with the government.
