BIBFRAME Work

Title

Identification and inference with many invalid instruments

Type

• Text
• Monograph

Contribution

• Kolesár, Michal (contributor)
• National Bureau of Economic Research (contributor)

Language

• English

Classification

LCC: HB1 (Assigner: dlc) (Status: used by assigner)

Content

• text

Supplementary content

• bibliography

Summary

"We analyze linear models with a single endogenous regressor in the presence of many instrumental variables. We weaken a key assumption typically made in this literature by allowing all the instruments to have direct effects on the outcome. We consider restrictions on these direct effects that allow for point identification of the effect of interest. The setup leads to new insights concerning the properties of conventional estimators, novel identification strategies, and new estimators to exploit those strategies. A key assumption underlying the main identification strategy is that the product of the direct effects of the instruments on the outcome and the effects of the instruments on the endogenous regressor has expectation zero. We argue in the context of two specific examples with a group structure that this assumption has substantive content"--National Bureau of Economic Research web site.

Authorized Access Point

Identification and inference with many invalid instruments

Admin Metadata

• Date: 2026-09-11T20:18:28.359728+00:00
• Agent: cbc
• Status: c
• Derived from: 17106339

Admin Metadata

• Date: 2026-09-11
• Cataloger id: Unknown
• Description level: http://id.loc.gov/ontologies/bibframe-2-6-0/
• Description language: eng
• Description authentication: pcc