@unpublished{publication-5748,
	author={Brown, Martin and Falk, Armin and Fehr, Ernst},
	institution={University of Zurich},
	issn={1424-0459},
	number={No. 38},
	series={Working paper series / Institute for Empirical Research in Economics},
	title={Contractual Incompleteness and the Nature of Market Interactions},
	year=2002,
}