Latent class instrumental variables and the monotonicity assumption
Abstract A key aspect of the article by Lousdal on instrumental variables was a discussion of the monotonicity assumption. However, there was no mention of the history of the development of this assumption. The purpose of this letter is to note that Baker and Lindeman and Imbens and Angrist independ...
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Format: | Article |
Language: | English |
Published: |
BMC
2020-03-01
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Series: | Emerging Themes in Epidemiology |
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Online Access: | http://link.springer.com/article/10.1186/s12982-020-00088-8 |