| Registro completo |
| Provedor de dados: |
AgEcon
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| País: |
United States
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| Título: |
Sensitivity analysis for average treatment effects
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| Autores: |
Becker, Sascha O.
Caliendo, Marco
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| Data: |
2011-12-27
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| Ano: |
2007
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| Palavras-chave: |
Mhbounds
Matching
Treatment effects
Sensitivity analysis
Unobserved heterogeneity
Rosenbaum bounds
Research Methods/ Statistical Methods
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| Resumo: |
Based on the conditional independence or unconfoundedness assumption, matching has become a popular approach to estimate average treatment effects. Checking the sensitivity of the estimated results with respect to deviations from this identifying assumption has become an increasingly important topic in the applied evaluation literature. If there are unobserved variables that affect assignment into treatment and the outcome variable simultaneously, a hidden bias might arise to which matching estimators are not robust. We address this problem with the bounding approach proposed by Rosenbaum (Observational Studies, 2nd ed., New York: Springer), where mhbounds lets the researcher determine how strongly an unmeasured variable must influence the selection process to undermine the implications of the matching analysis.
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| Tipo: |
Article
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| Idioma: |
Inglês
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| Identificador: |
st0121
http://purl.umn.edu/119255
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| Relação: |
Stata Journal>Volume 7, Number 1, 1st Quarter 2007
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| Formato: |
13
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