@unpublished{publication-5319,
	author={Brunner, Christoph and Goeree, Jacob K},
	institution={University of Zurich},
	issn={1424-0459},
	number={No. 439},
	series={Working paper series / Institute for Empirical Research in Economics},
	title={Wise Crowds or Wise Minorities?},
	year=2009,
}