EconPapers    
Economics at your fingertips  
 

Unbiased IV in Stata

Austin Nichols

London Stata Conference 2019 from Stata Users Group

Abstract: A well-known result is that exactly identified IV has no moments, including in the ideal case of an experimental design (that is, a randomized control trial with imperfect compliance). However, this result no longer holds when the sign of the first stage is known. I describe a Stata implementation of an unbiased estimator for instrumental-variable models with a single endogenous regressor where the sign of one or more first-stage coefficients is known (Andrews and Armstrong 2017) and its finite sample properties under alternative error structures.

Date: 2019-09-15
New Economics Papers: this item is included in nep-exp
References: Add references at CitEc
Citations:

Downloads: (external link)
http://repec.org/usug2019/Nichols_uk19.pdf (application/pdf)

Related works:
Working Paper: Unbiased IV in Stata (2019) Downloads
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:boc:usug19:21

Access Statistics for this paper

More papers in London Stata Conference 2019 from Stata Users Group Contact information at EDIRC.
Bibliographic data for series maintained by Christopher F Baum ().

 
Page updated 2024-07-01
Handle: RePEc:boc:usug19:21