@unpublished{publication-5439,
	author={Acemoglu, Daron and Aghion, Philippe and Griffith, Rachel and Zilibotti, Fabrizio},
	institution={University of Zurich},
	issn={1424-0459},
	number={No. 342},
	series={Working paper series / Institute for Empirical Research in Economics},
	title={Vertical Integration and Technology: Theory and Evidence},
	year=2007,
}