@unpublished{publication-5521,
	author={Feld, Lars P and Frey, Bruno S},
	institution={University of Zurich},
	issn={1424-0459},
	number={No. 287},
	series={Working paper series / Institute for Empirical Research in Economics},
	title={Tax Compliance as the Result of a Psychological Tax Contract: The Role of Incentives and Responsive Regulation},
	year=2006,
}