Frölich, Markus; Melly, Blaise - Institute for the Study of Labor (IZA) - 2008
continuous.
JEL Classification: C13, C14, C21
Keywords: treatment effects, instrumental variables, non …-compliance, the population of treated and compliers are identical such
that the instrumental variables estimator estimates e�ects for … instrumental variables for non-response.
4Missing outcome data also often occurs if for cost reasons we sample only a subset of the …