@unpublished{publication-5764,
	author={Feld, Lars P and Frey, Bruno S},
	institution={University of Zurich},
	issn={1424-0459},
	number={No. 98},
	series={Working paper series / Institute for Empirical Research in Economics},
	title={Trust Breeds Trust: How Taxpayers Are Treated},
	year=2002,
}