Using Selection on Observed Variables to Assess Bias from Unobservables When Evaluating Swan-Ganz Catheterization

Autor:	Altonji, Joseph G., Elder, Todd E., Taber, Christopher R.
Zdroj:	The American Economic Review, 2008 May 01. 98(2), 345-350.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/29730045 Zobrazit plný text záznamu