My reflexion originates from the notion of covering model with nice estimation properties. This happens to be particularly useful in studies for which the outcome of interest is measured only on a selected population. Let X be an explanatory variable of the outcome Y and Z be a variable that drives the selection mechanism. Two situations can occur, one in which Y is defined for all units in the population but observed only for Z taking on some particular values and the other in which Y is defined only for those units with Z taking on particular values. I shall discuss the first one and build an example to summarize what I mean, and to clarify my comment.
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Titolo: | Comments on: Sequence of regressions and their independences |
Autori: | |
Data di pubblicazione: | 2012 |
Rivista: | |
Abstract: | My reflexion originates from the notion of covering model with nice estimation properties. This h...appens to be particularly useful in studies for which the outcome of interest is measured only on a selected population. Let X be an explanatory variable of the outcome Y and Z be a variable that drives the selection mechanism. Two situations can occur, one in which Y is defined for all units in the population but observed only for Z taking on some particular values and the other in which Y is defined only for those units with Z taking on particular values. I shall discuss the first one and build an example to summarize what I mean, and to clarify my comment. |
Handle: | http://hdl.handle.net/11391/918087 |
Appare nelle tipologie: | 1.2 Recensione in rivista |