@unpublished{publication-5405,
	author={Torgler, Benno and Schmidt, Sascha L and Frey, Bruno S},
	institution={University of Zurich},
	issn={1424-0459},
	number={No. 368},
	series={Working paper series / Institute for Empirical Research in Economics},
	title={The Power of Positional Concerns},
	year=2008,
}