We will study how the presence of an instrument for nonresponse can help to sharpen bounds on the average treatment effect for the whole population. We will also provide new sufficient conditions for partial identification of causal effects for specific subpopulations of units defined by their nonresponse behavior in all possible combinations of treatment and instrument values.
Identification of causal effects in the presence of nonignorable missing outcome values / A. Mattei; F. Mealli; B. Pacini. - In: QUADERNI DI STATISTICA. - ISSN 1594-3739. - STAMPA. - 14:(2012), pp. 157-160. (Intervento presentato al convegno Methods and Models for Latent Variables tenutosi a Napoli).
Identification of causal effects in the presence of nonignorable missing outcome values
MATTEI, ALESSANDRA;MEALLI, FABRIZIA;PACINI, BARBARA
2012
Abstract
We will study how the presence of an instrument for nonresponse can help to sharpen bounds on the average treatment effect for the whole population. We will also provide new sufficient conditions for partial identification of causal effects for specific subpopulations of units defined by their nonresponse behavior in all possible combinations of treatment and instrument values.
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