@unpublished{publication-15772,
	author={Autor, David and Dorn, David and Hanson, Gordon and Pisano, Gary and Shu, Pian},
	doi={10.3386/w22879},
	institution={National Bureau of Economic Research},
	number=22879,
	pages=43,
	series={NBER Working Papers},
	title={Foreign competition and domestic innovation: evidence from U.S. patents},
	year=2017,
}