@unpublished{publication-5211,
	author={Peter, Egger and Larch, Mario and Staub, Kevin E and Winkelmann, Rainer},
	institution={University of Zurich},
	number={No. 1013},
	series={Working paper series / Socioeconomic Institute},
	title={The Trade Effects of Endogenous Preferential Trade Agreements},
	year=2010,
}