@unpublished{publication-5663,
	author={Fehr, Ernst and Schmidt, Klaus M},
	institution={University of Zurich},
	issn={1424-0459},
	number={No. 179},
	series={Working paper series / Institute for Empirical Research in Economics},
	title={The Role of Equality, Efficiency, and Rawlsian Motives in Social Preferences: A Reply to Engelmann and Strobel},
	year=2004,
}