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Re:We Aren’t the World (2013) by chillax on Friday May 02, 2014 @09:18AM (#7685454)
Wrt $ amount (from the article):

"The stakes Henrich used in the game with the Machiguenga were not insubstantial—roughly equivalent to the few days’ wages they sometimes earned from episodic work with logging or oil companies." - Probably far from $100.

Re:We Aren’t the World (2013) by vacri on Friday May 02, 2014 @09:38AM (#7685556)
We don't know how much the American study used, though. The $100 is just an example amount mentioned in the article, not a reference.