@unpublished{publication-7141,
	author={Widmer, Philippe K and Elias, George and Zweifel, Peter},
	institution={University of Zurich},
	issn={1664-7041},
	number=85,
	pages=19,
	series={Working paper series / Department of Economics},
	title={Improving efficiency through consolidation of jurisdictions? Evidence from the cantons of Switzerland},
	year=2012,
}