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		| Jakub  Steiner | 
	
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		| ''A  trace of anger is enough: on the enforcement of social norms'' | 
	
		| ( 2007, Vol. 8 No.1 ) | 
	
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		| It is well documented that the possibility of punishing free-riders increases contributions in one-shot public good games. I demonstrate theoretically that minimal punishment commitments (perhaps provided by anger) may lead to high contribution levels. Thus, almost selfish players may behave as strong reciprocators. | 
	
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		| Keywords: | 
	
		| JEL: H4 - Publicly Provided Goods: General 
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		| | Manuscript Received : Jan 19 2007 |  | Manuscript Accepted : Jan 19 2007 | 
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