Blar i Øvrige samlinger på forfatter "Walters, Christopher R."
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The causal interpretation of two-stage least squares with multiple instrumental variables
Mogstad, Magne; Torgovitsky, Alexander; Walters, Christopher R. (Peer reviewed; Journal article, 2021)Empirical researchers often combine multiple instrumental variables (IVs) for a single treatment using two-stage least squares (2SLS). When treatment effects are heterogeneous, a common justification for including multiple ...