@unpublished{publication-6919,
	author={Mentzakis, Emmanouil and Zhang, Jingjing},
	institution={University of Zurich},
	issn={1664-7041},
	number=70,
	pages=27,
	series={Working paper series / Department of Economics},
	title={An investigation of individual preferences: consistency across incentives and stability over time},
	year=2012,
}