Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/161269 
Year of Publication: 
2017
Series/Report no.: 
IZA Discussion Papers No. 10646
Publisher: 
Institute of Labor Economics (IZA), Bonn
Abstract: 
Instrumental variables (IV) is an indispensable tool for establishing causal relationships between variables. Recent work has focused on improving bounds for cases when an ideal instrument does not exist. We leverage a principle, "Intransitivity in Correlations," related to an under-utilized property from the statistics literature. From this principle, it is straightforward to obtain new bounds. We argue that these new theoretical bounds become increasingly useful as instruments become increasingly weak or invalid.
Subjects: 
instrumental variables
bounding
partial identification
transitivity in correlations
JEL: 
C26
Document Type: 
Working Paper

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