Two Applications of wild bootstrap methods to Improve Inference in cluster-IV models

Leandro M Magnusson, Keith Finlay

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Microeconomic data often have within-cluster dependence, which affects standard error estimation and inference. When the number of clusters is small, asymptotic tests can be severely oversized. In the instrumental variables model, the potential presence of weak instruments further complicates hypothesis testing. We use wild bootstrap methods to improve inference in two empirical applications with these characteristics. Building from estimating equations and residual bootstraps, we identify variants robust to the presence of weak instruments and a small number of clusters. They reduce absolute size bias significantly and demonstrate that the wild bootstrap should join the standard toolkit in IV and cluster-dependent models.
Original languageEnglish
JournalJournal of Applied Econometrics
DOIs
Publication statusE-pub ahead of print - 6 Apr 2019

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